AVEVA™
formerly Wonderware
AVEVA Application Server
Application Server Scripting Guide
AVEVA™ AVEVA Application Server formerly Wonderware Application Server Scripting Guide
2
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Publication date: Friday, October 2, 2020
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Chapter 1 Common Scripting Environment ....................................................................... 7
Script Editing Styles and Syntax................................................................................................. 7
Required Syntax for Expressions and Scripts .............................................................................. 7
Simple Scripts........................................................................................................................... 7
Script Execution Types .............................................................................................................. 8
Startup Scripts .................................................................................................................... 8
OnScan Scripts ................................................................................................................... 8
Execute Scripts ................................................................................................................... 8
OffScan Scripts ................................................................................................................... 9
Shutdown Scripts ................................................................................................................ 9
Deployment Scripts ............................................................................................................. 9
Working with QuickScript Editor Features ................................................................................. 10
Color Indicators for Script Elements.................................................................................... 10
Autocomplete.................................................................................................................... 10
Accepting Autocomplete Suggestions ................................................................................. 14
Multi-level Undo and Redo ................................................................................................. 14
Dynamic Referencing Considerations ................................................................................. 14
Run-Time Client Script Behavior ........................................................................................ 16
Opening a Client Application Window ................................................................................. 16
Closing a Client Application Window................................................................................... 16
Minimizing a Client Application Window .............................................................................. 17
Maximizing or Restoring a Client Application Window .......................................................... 17
Visual Indication of Script Errors......................................................................................... 17
Line Numbers ................................................................................................................... 17
Log Functions ................................................................................................................... 17
Chapter 2 QuickScript .NET Functions ............................................................................ 19
Script Functions ...................................................................................................................... 19
Graphic Client Functions.................................................................................................... 19
GetCPQuality() ............................................................................................................ 19
GetCPTimeStamp() ..................................................................................................... 20
HideContent().............................................................................................................. 20
HideGraphic().............................................................................................................. 24
HideSelf().................................................................................................................... 24
Logoff() ....................................................................................................................... 25
ShowContent() ............................................................................................................ 25
ShowGraphic() ............................................................................................................ 30
ShowLoginDialog() ...................................................................................................... 39
InTouch Functions............................................................................................................. 40
AddPermission() Function ............................................................................................ 40
AttemptInvisibleLogon() Function.................................................................................. 40
ChangePassword() Function ........................................................................................ 41
EnableDisableKeys() Function...................................................................................... 42
FileCopy() Function ..................................................................................................... 42
FileDelete() Function ................................................................................................... 43
Contents
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FileMove() Function ..................................................................................................... 44
FileReadFields() Function ............................................................................................ 45
FileReadMessage() Function........................................................................................ 46
FileWriteFields() Function ............................................................................................ 46
FileWriteMessage() Function ........................................................................................ 47
GetAccountStatus() Function........................................................................................ 48
GetNodeName() Function ............................................................................................ 48
InfoAppTitle() Function................................................................................................. 49
InfoDisk() Function ...................................................................................................... 49
InfoFile() Function ....................................................................................................... 50
InfoInTouchAppDir() Function....................................................................................... 51
InTouchVersion() Function ........................................................................................... 51
InvisibleVerifyCredentials() Function ............................................................................. 52
IsAssignedRole() Function ........................................................................................... 52
LaunchTagViewer() Function........................................................................................ 53
LogonCurrentUser() Function ....................................................................................... 53
PlaySound() Function .................................................................................................. 54
PostLogonDialog() Function ......................................................................................... 54
PrintScreen() Function ................................................................................................. 54
QueryGroupMembership() Function.............................................................................. 55
ShowHome() Function ................................................................................................. 56
Starting a Windows Application .................................................................................... 56
SwitchDisplayLanguage() Function ............................................................................... 56
TseGetClientId() Function ............................................................................................ 57
TseGetClientNodeName() Function .............................................................................. 57
TseQueryRunningOnClient() Function .......................................................................... 57
TseQueryRunningOnConsole() Function....................................................................... 57
Math Functions ................................................................................................................. 58
Abs() .......................................................................................................................... 59
ArcCos() ..................................................................................................................... 59
ArcSin() ...................................................................................................................... 59
ArcTan() ..................................................................................................................... 60
Cos() .......................................................................................................................... 60
Exp() .......................................................................................................................... 60
Int() ............................................................................................................................ 61
Log()........................................................................................................................... 61
Log10() ....................................................................................................................... 61
LogN() ........................................................................................................................ 62
Pi() ............................................................................................................................. 62
Round() ...................................................................................................................... 63
Sgn() .......................................................................................................................... 63
Sin() ........................................................................................................................... 63
Sqrt() .......................................................................................................................... 64
Tan() .......................................................................................................................... 64
Trunc()........................................................................................................................ 65
Miscellaneous Functions.................................................................................................... 65
ActivateApp() .............................................................................................................. 65
DateTimeGMT() .......................................................................................................... 66
IsBad()........................................................................................................................ 67
IsGood() ..................................................................................................................... 67
IsInitializing() ............................................................................................................... 67
IsUncertain() ............................................................................................................... 68
IsUsable() ................................................................................................................... 68
LogCustom() ............................................................................................................... 69
LogDataChangeEvent() ............................................................................................... 69
LogError() ................................................................................................................... 70
LogMessage() ............................................................................................................. 71
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LogTrace() .................................................................................................................. 71
LogWarning() .............................................................................................................. 72
SendKeys() ................................................................................................................. 72
SetAttributeVT() .......................................................................................................... 74
SetAttributeVT2()......................................................................................................... 74
SetBad() ..................................................................................................................... 75
SetGood() ................................................................................................................... 75
SetInitializing()............................................................................................................. 76
SetUncertain() ............................................................................................................. 76
SignedAlarmAck()........................................................................................................ 77
SignedWrite() .............................................................................................................. 80
WriteStatus() ............................................................................................................... 84
WWControl() ............................................................................................................... 85
String Functions ................................................................................................................ 85
DText() ....................................................................................................................... 85
StringASCII()............................................................................................................... 86
StringChar() ................................................................................................................ 86
StringCompare().......................................................................................................... 87
StringCompareNoCase().............................................................................................. 87
StringFromGMTTimeToLocal() ..................................................................................... 88
StringFromIntg() .......................................................................................................... 89
StringFromReal() ......................................................................................................... 89
StringFromTime() ........................................................................................................ 90
StringFromTimeLocal() ................................................................................................ 91
StringInString() ............................................................................................................ 92
StringLeft() .................................................................................................................. 92
StringLen() .................................................................................................................. 93
StringLower() .............................................................................................................. 93
StringMid() .................................................................................................................. 94
StringReplace() ........................................................................................................... 94
StringRight()................................................................................................................ 95
StringSpace() .............................................................................................................. 96
StringTest() ................................................................................................................. 97
StringToIntg() .............................................................................................................. 97
StringToReal()............................................................................................................. 98
StringTrim() ................................................................................................................. 99
StringUpper() .............................................................................................................. 99
Text()........................................................................................................................ 100
WWStringFromTime() ................................................................................................ 100
System Functions............................................................................................................ 101
CreateObject()........................................................................................................... 101
Now() ....................................................................................................................... 101
WWDDE Functions ......................................................................................................... 102
WWExecute() ............................................................................................................ 102
WWPoke() ................................................................................................................ 103
WWRequest() ........................................................................................................... 103
QuickScript .NET Operators................................................................................................... 104
Parentheses ( ) ............................................................................................................... 106
Negation ( - )................................................................................................................... 106
Complement ( ~ ) ............................................................................................................ 106
Power ( ** ) ..................................................................................................................... 106
Multiplication ( * ), Division ( / ), Addition ( + ),Subtraction ( - ) ............................................ 107
Modulo (MOD) ................................................................................................................ 107
Shift Left (SHL), Shift Right (SHR) .................................................................................... 107
Bitwise AND ( & ) ............................................................................................................ 107
Exclusive OR (^) and Inclusive OR ( | ) ............................................................................. 107
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Assignment ( = ) .............................................................................................................. 108
Comparisons ( <, >, <=, >=, ==, <> )................................................................................. 108
AND, OR, and NOT ......................................................................................................... 108
QuickScript .NET Variables ................................................................................................... 108
Numbers and Strings ....................................................................................................... 110
QuickScript .NET Control Structures....................................................................................... 111
IF … THEN … ELSEIF … ELSE … ENDIF ....................................................................... 111
IF … THEN … ELSEIF … ELSE … ENDIF and Attribut e Quality ........................................ 112
FOR … TO … STEP … NE XT Loop ................................................................................. 113
FOR EACH … IN … NEXT .............................................................................................. 114
TRY ... CATCH ............................................................................................................... 114
WHILE Loop ................................................................................................................... 115
Chapter 3 Sample QuickScript .NET Scripts ................................................................. 117
Accessing an Excel Spreadsheet Using an Imported Type Library ........................................... 117
Accessing an Excel Spreadsheet Using CreateObject ............................................................. 117
Calling a Web Service to Get the Temperature for a Specified Zip Code ................................... 118
Calling a Web Service to Send an E-mail Message ................................................................. 118
Creating a Look-up Table and Doing a Look-up on It ............................................................... 118
Creating an XML Document and Saving it to Disk ................................................................... 119
Executing a SQL Parameterized INSERT Command ............................................................... 119
Filling a String Array and Using It ........................................................................................... 120
Filling a Two-Dimensional Integer Array and Using It ............................................................... 120
Formatting a Number Using a .NET Format 'Picture'................................................................ 120
Formatting a Time Using a .NET Format 'Picture' .................................................................... 120
Getting the Directories Under the C Drive ............................................................................... 120
Loading an XML Document from Disk and Doing Look-ups on It .............................................. 121
Querying a SQL Server Database .......................................................................................... 121
Reading a Performance Counter ............................................................................................ 121
Reading a Text File from Disk ................................................................................................ 121
Sharing a SQL Connection or Any Other .NET Object ............................................................. 122
Using DDE to Access an Excel Spreadsheet .......................................................................... 122
Using Microsoft Exchange to Send an E-mail Message ........................................................... 122
Using Screen-Scraping to Get the Temperature for a City........................................................ 123
Using SMTP to Send an E-mail Message ............................................................................... 123
Writing a Text File to Disk ...................................................................................................... 123
Dynamically Binding an Indirect Variable to a Reference ......................................................... 123
Binding to Off-engine Attributes ........................................................................................ 124
Index ....................................................................................................................................... 127
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This section describes common styles, syntax, commands, and behaviors of scripts within AVEVA™
Application Server, formerly Wonderware.
Script Editing Styles and Syntax
Application Server supports two types of scripts:
Simple scripts can perform assignments, comparisons, simple math functions, and similar actions.
Simple scripts are described in this section.
Complex scripts can perform logical operations using conditional branching with IF-THEN-ELSE
type control structures. For more information about complex control structures, see QuickScript
.NET Control Structures on page 111.
Both single and multi-line comments are supported. Single-line comments start with a " ’ " in the line but
require no ending " ’ " in the line. Multi-line comments start with a "{" and end with a "}" and can span
multiple lines.
White space rules apply for space and indention. Indent using spaces, or the TAB key. Individual
statements are indicated by a semicolon marking the end of the statement.
Required Syntax for Expressions and Scripts
The syntax in scripts is similar to the algebraic syntax of a calculator. Most statements are presented
using the following form:
a = (b - c) / (2 + x) * xyz;
This statement places the value of the expression to the right of the equal sign (=) in the variable location
named "a."
A single entity must appear to the left of the assignment
operator =.
The operands in an expression can be constants or variables.
Statements must end with a semicolon (;).
Entities can be concatenated by using the plus (+) operator. For example, if a data change script such as
the one below is created, each time the value of "Number" changes, the indirect entity "Setpoint"
changes accordingly:
Number=1;
Setpoint = "Setpoint" + Text(Number, "#");
Where the result is "Setpoint1."
Simple Scripts
Simple scripts implement logic such as assignments, math, and functions. An example of this type of
scripting is:
React_temp = 150;
ResultTag = (Sample1 + Sample2)/2;
{this is a comment}
CHAPTER 1
Common Scripting Environment
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Script Execution Types
This section describes the script execution types supported by AVEVA OMI.
Startup Scripts on page 8
OnScan Scripts on page 8
Execute Scripts on page 8
OffScan Scripts on page 9
Shutdown Scripts on page 9
Deployment Scripts on page 9
Startup Scripts
Startup scripts are called when an object containing the script is loaded into memory, such as during
deployment, platform, or engine start.
Startup instantiates COM objects and .NET objects. Depending on load and other factors, assignments
to object attributes from the Startup method may fail. Attributes that reside off-object are not available to
the Startup method.
OnScan Scripts
OnScan scripts are called the first time an AppEngine calls this object to execute after the object’s scan
state changes to OnScan. The OnScan method initiates local object attribute values and provides more
flexibility in the creation of .NET or COM objects.
Attributes that are off-engine are not available to the OnScan method.
Execute Scripts
Execute scripts are called each time the AppEngine performs a scan and the object is OnScan.
The Execute script method is the workhorse of the scripting execution types. Use the Execute method for
your run-time scripting to ensure that all attributes and values are available to the script.
If the Quality check-box is checked, the Execute method is similar to InTouch
®
scripts with the following
conditional trigger types:
Periodic: When going OnScan, a script with a periodic trigger executes immediately (at the next
scheduled scan period of the AppEngine). It then executes periodically whenever the elapsed time
evaluates as true.
Data Change: Executes when a data value or quality changes between scans.
For the following trigger types, data changes between each scan are not eval uated, only the value at the
beginning of each script is used for evaluation purposes. For example, if a Boolean attribute changes
from True to False to True again during a scan cycle, this change is not evaluated as a data change as
the value is True at the beginning of each scan cycle.
OnTrue: Executes if the expression validates from a false on one scan to a true on the next scan.
OnFalse: Executes if the expression validates from a true on one scan to a false on the next scan.
These scripts also have time-based considerations. A trigger period of 0 means that the script executes
every scan.
Time-based scripts, WhileTrue, WhileFalse, and Periodic are evaluated and executed based on the
elapsed time from a timestamp generated from the previous execution, not on an elapsed time counter. It
is possible that a change in the system clock can change the interval between execution of these scripts.
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WhileTrue: Executes scan to scan as long as the expression validates as true at the begin ning of the
scan.
WhileFalse: Executes scan to scan as long as the expression validates as false at the beginning of
the scan.
For example, a periodic script is set to run every 60 minutes. The script executes at 11:13 AM. We expect
it to execute 60 minutes later at 12:13 PM. However, a time synchronization event occurred and the
node’s time is adjusted from 11:33 AM to 11:30 AM.
The script still executes when the system time reaches 12:13 PM. But because of the time change, the
actual (True) time period that elapsed between executions is 63 minutes.
OffScan Scripts
OffScan scripts are called when the object is taken OffScan. This script type is primarily used to clean up
the object and account for any needs to address as a result of the object no longer executing.
If an object is taken OffScan, either directly, or indirectly because its engine is taken OffScan, all
in-progress asynchronous scripts for that object are requested to shut down by setting a Boolean
shutdown attribute for the script to true. A well-written script checks this attribute before and after
time-consuming operations. If the script takes more than 30 seconds to complete, a warning appears in
the logger that the script is not responding to the shutdown command. However, the script is allowed to
complete and is not terminated by forc e. This all takes place on the engine’s main thread and could
potentially hang the engine. During this time, the script might also time out and as a result exit before
executing all its logic.
Shutdown Scripts
Shutdown scripts are called when the object is about to be removed from memory, usually as a result of
the AppEngine stopping. Shutdown scripts are primarily used to destroy COM objects and .NET objects
and to free memory.
Deployment Scripts
Deploying objects is both a critical and a load-intensive process for a Galaxy. Implementing scripting in
the Startup and OnScan methods can adversely affect a Galaxy’s deployment and redundancy
performance.
While objects are being deployed, their Startup and, if deployed OnScan scripts are executed. These
scripts must complete within the deployment time-out period for the deployment to be successful.
Placing large numbers of scripts, or scripts that require heavy processing power into the Startup or
OnScan script methods can slow or cause a deployment or failover to fail. In addition to the load that is
placed on the system at deployment time, the type of scripting done in the Startup and OnScan methods
is also important becaus e these scripts execute in a sequence.
During deployment and restart, the Startup and OnScan script methods do not execute objects based on
execution order. Objects are started up and placed on scan based on their alphanumeric tag name within
their hosting Area.
Follow the recommendation below for each type of script method to help determine what scripting
practices to follow in each script method.
Do not place the following types of scripting in the Startup or OnScan methods:
Database access
File system access to .csv, .xml, .txt, and other file types
Off-object referencing
Dynamic referencing
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Working with QuickScript Editor Features
The QuickScript editor provides a number of features to enhance scripting speed and accuracy.
Color Indicators for Script Elements
The QuickScript .NET editor uses different text colors to identify different script elements. The following
table shows the text colors associated with script elements.
Autocomplete
QuickScript autocomplete incorporates several features for use while authoring object and client scripts:
Provides an autocomplete Attribute reference when you type a generic object name, such as "me."
Run-time attributes appear in an autocomplete list box. Typing "InTouch:" displays an autocomplete
list of tagnames from the most recently selected ViewApp template.
Provides method parameter help in an autocomplete list box including context-specific suggestions
covering definitions, keywords, script elements, and programmatic constructs such as try ... catch or
while ... endwhile.
Automatic word completion of Attribute references, methods, programmatic constructs, and other
script elements.
These features serve as convenient documentation of method parameters and scripting syntax as well
as an enhanced input method.
Autocomplete displays a context-sensitive list of options for script elements, keywords, object and
attribute names, and programmatic constructs. Press Ctrl+space to display all available autocomplete
options and variables for the selected location in the script. You can identify the context from the icons
displayed with the list items.
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Icon
Represents
MxBoolean attribute
MxInteger attribute
MxFloat attribute
MxDouble attribute
MxString attribute
MxTime attribute
MxElapsedTime attribute
MxReference attribute
MxStatus attribute
MxDataTypeEnum attribute
MxSecurityClassification attribute
MxDataQuality attribute
MxQualifiedEnum attribute
MxQualifiedStruct attribute
MxInternationalizedString attribute
.Net Method
.Net Property
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Icon
Represents
.Net Field or Variable
.Net Namespace
.Net Struct
.Net Class
.Net Interface
.Net Enumeration
.Net Enum Value
QuickScript Keyword
Contained object name, or any partial attribute name such as a attribute, field
attribute, or primitive that has a dot in the name, or any attribute of Mx type
MxNone, or if there are several type choices among objects and attributes.
If the attribute cannot be exactly or unambiguously returned, this icon will appear.
Partial name example: For me.alarm.a1, typing "me.alar" will show the blue ball
icon for alarm.
MxNone example: input/output extension attribute WriteValue.
Rectangle
Rounded rectangle
Line
Horizontal or vertical line
Text
Ellipse
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Icon
Represents
Curve
Closed curve
Button
Polygon
Polyline
Connect
Image
Group or embedded symbol
Alarm control
Edit box
Arc
Pie
Chord
Circle
Status
Radio buttons
Checkbox
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Icon
Represents
Edit box
Combo box
Calendar
Date picker
List box
Accepting Autocomplete Suggestions
Insert an item at the editor caret from the autocomplete list box—without an end line or tab
appended—by doing one of the following:
Double-click the item.
Highlight (select) the item and press the Enter key or the Tab key.
Type a space, period, comma, open or closed parenthesis, or other punctuation used in the QuickScript
.NET programming language (: ; [ ] = < > - + / *), and the item highlighted in the autocomplete list box will
be inserted at the editor caret with the additional character appended.
Multi-level Undo and Redo
You can selectively undo a history of changes to your script. The number of changes that can be undone
is limited only by the amount of available memory.
An undone change can be redone. Redo mirrors undo changes.
A single undo typically is comprised of sequences of typing or deleting, which can be interrupted by
interaction with an autocomplete list or by moving the cursor with the mouse, or by clicking elsewhere in
the script.
All pending undo and redo actions will be lost if you close the object editor, switch to another script within
the object editor, or switch among Startup, OnScan, Execute, OffScan, and Shutdown scripts.
Dynamic Referencing Considerations
Dynamic reference scripting is one the biggest causes of deployment failures of StartUp and OnScan
execution types.
Rather than placing dynamic referencing scripts in the Startup or OnScan methods, perform dynamic
referencing in the Execute method. There are several advantages to using the Execute method with
dynamic reference scripting:
Deployment is faster.
Deployment is more reliable.
Deterministic execution order is guaranteed.
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Off-object and off-engine attributes are available.
After a failover occurs, the startup of the redundant engine is more stable and can be faster.
To create a simple dynamic reference script example
1. Create a Boolean attribute.
The attribute shows if the referencing script is complete. In this example you create Ref_Done.
IO_Item1 and IO_Item2 are the I/O points referenced in this example.
2. Create the script. The script in this example is called Set_Refs. The script has a trigger type of
WhileTrue with a 0 trigger period.
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The script is shown below:
If Me.Set_Refs.ExecutionCnt == 2 then
Me.IOItem1.InputSource = "DIObject.Topic." + me.Tagname + ".Item1";
Me.IOItem1.OutputDest = "DIObject.Topic." + me.Tagname + ".Item1";
Me.IOItem2.InputSource = "DIObject.Topic." + me.Tagname + ".Item2";
Me.IOItem2.OutputDest = "DIObject.Topic." + me.Tagname + ".Item2";
Me.Ref_Done = True;
Endif;
This script allows the system to stabilize after going on scan before setting the references. The script
executes on the first two scans of the object when the Boolean attribute Ref_Done is false.
As the script is executed, a check is made against the execution count. If the count equals 2, the
script performs the referencing operations. After the reference attributes are set on the attributes, the
Ref_Done attribute is set to True. At this point the expression for the script is no longer true.
The three attributes set in this script are checkpointed, eliminating the need to run this script except
on deployment. The next time the object is started, placed on scan, or failed over, there is no need to
recreate the references to the items.
Run-Time Client Script Behavior
In Advanced Communication Management, script references to InTouch tags and object attributes are
suspended from receiving data changes when the application window containing embedded ArchestrA
®
objects is minimized in InTouch WindowViewer. Suspending data updates to hidden objects reduces the
amount of network traffic and improves the overall performance of a client application.
While Showing scripts of embedded symbols do not execute during the period when the window
containing the symbols is minimized. Script execution resumes after restoring or maximizing a window
that had been previously closed or minimized.
Opening a Client Application Window
In Advanced Communication Management, when a client application window containing embedded
ArchestrA objects opens in WindowViewer, the following script events occur:
Register all ArchestrA and InTouch references used in embedded symbol scripts, if not registered
already.
Advise all ArchestrA and InTouch references in embedded symbol scripts within the window, if not
advised already.
Execute the OnShow script on all embedded symbol scripts within the window.
Execute named scripts if their trigger conditions are met.
Closing a Client Application Window
In Advanced Communication Management, when a client application window containing embedded
ArchestrA objects is closed, the following script events occur:
Execute OnHide scripts of all embedded symbols within the window.
Stop running client scripts.
Unadvise all ArchestrA and InTouch references in the Window if there are no other open windows
using the references.
Unregister all ArchestrA and InTouch references in the Window if there are no other open windows
using the references.
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Minimizing a Client Application Window
In Advanced Communication Management, when an open window containing embedded ArchestrA
objects is minimized in WindowViewer, the following script events occur:
Stop running client scripts associated with ArchestrA objects embedded in the window.
Unadvise all ArchestrA and InTouch references in the Window if there are no other open windows
using the references.
OnHide scripts of embedded symbols do not execute when a window is minimized.
Maximizing or Restoring a Client Application Window
In Advanced Communication Management, after maximizing or restoring a window from WindowViewer
that had been previously minimized or closed, the following script events occur:
Advise all ArchestrA and InTouch script references in the window, if not advised already.
Execute named scripts if their trigger conditions are met.
Visual Indication of Script Errors
Verification errors in script text are marked with a red "squiggly" underline. The underline appears after
approximately 2.5 seconds of keyboard inactivity.
Hovering over the error with the mouse cursor will display the error message as a tooltip. The tooltip error
message is identical to the message shown when clicking the script verification button.
Note: In addition to error tooltips, the script editor will also display the variable name and type in a tooltip
when hovering over a variable name in the script.
In some cases, more than one error will be underlined. This is not always possible because some errors
prevent the compiler from continuing past the error.
Line Numbers
The script editor displays line numbers in the left margin.
Line numbers of up to four digits will display when the script editor is not zoomed.
The line number may appear clipped for scripts longer than 9999 lines or when the script editor is
zoomed.
Use the right-click context menu Go To function to go to a specific line in the script.
Log Functions
QuickScript .NET functions include several log functions to capture and display information in the logger
under different log flags.
LogCustom() on page 69
LogError() on page 70
LogMessage() on page 71
LogTrace() on page 71
LogWarning() on page 72
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Important: To use the LogCustom function, you must enable Log Custom in the System Management
Console (SMC) Log Flag Editor. To use the LogTrace function, you must enable Log Trace in the SMC
Log Flag Editor.
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For information about other functions in this category, see third-party documentation.
Keep in mind the following limitations when you use the script functions:
Be aware of the .NET datatypes.
Starting a GUI application from within a server script is not supported.
Although QuickScript supports import libraries built with .NET CLR version 2.0.50727, it does not
support any of the new language features introduced with .NET 2.0, such as generics.
Script Functions
This section describes the script functions available in the HMI/SCADA development environment. The
function documentation is organized into a set of folders that represents the same organization of the
functions in the Script Function Browser.
Also provided are additional references for standard QuickScript .NET variables, control structures, and
operators.
Other Microsoft .NET script functions, are not documented. Refer to Microsoft .NET documentation for
descriptions of the functions.
Graphic Client Functions
Use graphic client functions to hide and show symbols, open and close popup windows, log in and log off
users, or to query custom properties contained in a symbol.
GetCPQuality()
Returns the Quality value of a custom property. This function is available within any Industrial Graphics
client script, but may not be supported by your HMI. For more information, consult your HMI
documentation.
Syntax
Int GetCPQuality(String name)
Where String name is the name of the custom property whose quality is to be retrieved.
This script function takes the name of a custom property on the symbol. This argument is of type string
and it can be a reference or a constant.
If the custom property is type constant, GOOD is the quality always returned.
Note: For use with custom properties only. It does not apply to HMI tags.
Return Value
The GetCPQuality() script function returns a value 0-255 of type Integer, as per the OPC quality
standard. 192 is GOOD.
Example
cp2 = GetCPQuality("cp1");
Where cp1 and cp2 are custom properties and the data type of cp2 is Integer.
CHAPTER 2
QuickScript .NET Functions
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GetCPTimeStamp()
Returns the time stamp of a custom property. This function is available within any Industrial Graphics
client script.
Syntax
DateTime GetCPTimeStamp(String name)
Where String name is the name of the custom property whose time stamp is to be retrieved.
This script function takes the name of a custom property on the symbol. This argument is of type string
and it can be a reference or a constant.
Note: For use with custom properties only. It does not apply to HMI tags.
Return Value
The GetCPTimeStamp() script function returns the time stamp of the custom property’s current value of
type DateTime. If the custom property value is a constant, then the return value is the time the value was
created.
Example
cp2 = GetCPTimeStamp("cp1");
Where cp1 and cp2 are custom properties and the data type of cp2 is DateTime.
HideContent()
Closes one or more matching content items within an AVEVA OMI ViewApp. Multiple content items can
be closed if they match the parameters that are specified in the HideContent call. The HideContent()
function uses a subset of the parameters that ShowContent() on page 25 uses.
The HideContent() function works only within a single level of the layout, and the level is defined by the
SearchScope parameter. By default, SearchScope is "Self," and searches within the layout that has
invoked it. This function is available within any Industrial Graphics client script or AVEVA OMI layout
script. SearchScope parameters other than "Self" constrain the search for content to only layouts that are
directly associated with the Screen Profile, and not a nested layout. (A nested layout is a layout
embedded or contained in a pane of another layout.)
Note: While the HideContent() function is available in object scripts through both IntelliSense and the
IDE function browser, its use in object scripts is not supported.
Category
Graphic Client
Syntax
Dim contentInfo as aaContent.ContentInfo;
contentInfo.Content = “SA_Valve_2Way";
contentInfo.Name =”SA_Valve_2Way1”;
contentInfo.ContentType = “Level_3”;
contentInfo.PaneName =”Pane 2”;
contentInfo.ScreenName =”Primary”;
contentInfo.SearchScope = aaContent.SearchScope.Self;
HideContent( contentInfo );
Parameter
ContentInfo
The description of the content, along with the location of the content (screen and pane) to be hidden.
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Data Type
aaContent.ContentInfo
Examples
Dim contentInfo as aaContent.ContentInfo;
contentInfo.Name = “Symbol21”;
HideContent( contentInfo );
Where "Symbol21" is the Name property of the content shown in the Layout Editor.
Dim contentInfo as aaContent.ContentInfo;
contentInfo.Content = “Symbol_001”;
HideContent( contentInfo );
Where "Symbol_001" is the name of the content as listed in the Graphic Toolbox.
Dim contentInfo as aaContent.ContentInfo;
HideContent( contentInfo );
When ContentInfo does not define any properties in the HideContent call, the nested layout that called it
is hidden. In this case, it works identically to the HideSelf method. See HideSelf() on page 24 for more
information.
If HideContent() with no ContentInfo properties is called from the top level of a layout, it has no effect; that
is, the top level layout is not closed.
Note: Even if you do not define any ContentInfo properties, you must pass the ContentInfo parameter in
the HideContent call (i.e., HideContent ( contentInfo )).
Property
Definition
Data Type
Required/
Optional
Content
A unique name for an item, either in the Graphic
Toolbox or associated with an asset, that
specifies the content to be loaded into the pane.
Content can be a symbol, a layout, or external
content.
String
Optional
Additional
information
"Content" is the name of the item within the Graphic Toolbox or associated
with an asset.
The content names are the names shown in the Graphic Toolbox. The
Properties tab of the Layout and ViewApp editors lists content name as the
Content property.
Relative names, for example, "Me.S1," can also be used to designate
content.
Content name must be unique. Application Server does not check for
duplicated names. If Content is duplicated, all content with the same name is
closed.
If the same content item is used in multiple panes of the layout, and the
"Content" property is specified by the HideContent() method, all instances of
the content item are hidden. To hide a single instance of a content item that
appears more than once in the layout, use the "Name" property instead.
Example
contentInfo.Content =
"UserDefinedObject_001.Symbol_001";
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Name
The auto-generated (or user-edited) name of a
unique content item. The name is created when
the content item is added to a layout pane.
String
Optional
Additional
information
"Name" must be unique within a layout. Name can be duplicated in nested
layouts, as long as the name is not duplicated within a nested single layout or
the top level layout.
The content Name property is shown in the Properties tab of the Layout
Editor, and is auto-generated from the Content property, also shown in the
Properties tab. You can edit the Name property.
When Name is specified in a HideContent call, only the uniquely-named
content is closed. If "Content" is specified and the "Name" property is not
specified, all items in the layout with the same content name are hidden. If
both are specified, "Name" has precedence.
Example
contentInfo.Name = "Symbol_011";
ScreenName
Specifies the screen that contains the pane with
the content to be closed.
String
Optional
Additional
information
ScreenNames are configured in the Screen Profile Editor. See Screen
Profiles in the System Platform Help for additional information.
Example
contentInfo.ScreenName = "Wall";
PaneName
Specifies the pane containing the content to be
closed.
String
Optional
Additional
information
PaneNames are configured in the Layout Editor. See Layouts in the System
Platform Help for additional information.
Example
contentInfo.PaneName = "Pane1";
ContentType
Specifies the content type of the content to be
closed, for example, "Overview," "Navigation,"
or "Faceplate."
String
Optional
Additional
information
ContentType is matched against the Content Type parameter that can be set
for a pane in the Layout Editor. ContentType is used to override the actual
type of the specified Content. If ContentType is not specified, Content is
examined for its type of content. See Layouts in the System Platform Help for
additional information about content types.
Example
contentInfo.ContentType = "Overview";
SearchScope
When ScreenName has not been specified,
SearchScope specifies which screen or screens
will be searched for a pane that matches the
specified PaneName or content type.
The default SearchScope is "Self."
Enum
Optional
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Additional
information
SearchScope is an enum with the following values:
Self searches for matching content within the panes of the layout from
which the HideContent call was made. If SearchScope is not specified,
"Self" is the default. When SearchScope = Self, the layout that initiated
the call is searched, whether it is the top level layout or a nested
(embedded) layout.
In contrast to "Self," the remaining SearchScope values reference only
the top level layout, not nested layouts.
AllScreens searches for matching content within the panes of all
screens in the top level layout. The search starts with the source screen,
then the primary screen, and then any remaining screens in alphabetical
order.
SourceScreen searches for matching content only within the panes of
the top level layout from which HideContent was called.
PrimaryScreen searches for matching content only within the panes of
the top level layout of the screen designated in the Screen Profile as the
primary screen.
Nested
Layout
If SearchScope is Self or is not specified, HideContent searches for a
matching pane within the layout that initiated the HideContent call.
When SearchScope is All, Source, or Primary, or if the ScreenName is
specified, HideContent searches for matching content within the top-level
layout only.
Example
contentInfo.SearchScope =
aaContent.SearchScope.PrimaryScreen;
Property
Overrides
Not applicable for use with HideContent. Used
for ShowContent calls only.
NA
NA
Additional
information
Property overrides are specified as a key-value pair, with the property name
enclosed in quotes. See ShowContent() on page 25 for more information.
OwningObject
Sets the owning object of the content shown by
the ShowContent() script function.
NA
NA
Additional
Information
OwningObject can be used for relative referencing. Can be a concatenation
of constant strings and reference strings.
Can be browsed using the Display Automation Object Browser, or you can
type the name of the owning object.
Note: The OwningObject property sets references for the graphic, but is not
associated with the GraphicName property if the symbol is part of an Object
Wizard. Therefore, if you are scripting a symbol with an owning object,
specify the owning object name as part of the GraphicName property, for
example, UserDefined_001.Pump_001.
Terms
Content type: specifies the type of content represented by a pane.
Content: the name of a graphic, layout, or external content item as it is listed within the the Graphic
Toolbox. This is displayed as the Content property in the Layout Editor when the content item is added to
a layout.
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Name: the unique name assigned to an instance of a content item, when it is added to a layout. This is
displayed as the Name property in the Layout Editor when the content item is added to a layout, and can
be edited.
Layout: consists of one or more rectangular areas called panes that contain content shown in a
ViewApp. A layout is associated with a screen, or it can be embedded within a pane of another layout.
Embedded or Nested Layout: In the context of ShowContent and HideContent, an embedded layout is
a layout that is placed inside a pane of a containing layout. When SearchScope is "Self" (default),
embedded layouts are searched for content that matches the parameters specified in the
ShowContent/HideContent call.
Pane: rectangular area of a layout that can hold a single piece of content.
Primary screen: represents the main screen of a workstation that will show a running ViewApp
Screen Profile: defines the physical characteristics of one or more client workstation screens that will
show a running ViewApp and how these screens are arranged with respect to each other.
Source screen: screen from which ShowContent or HideContent was called.
See Also
ShowContent() on page 25, HideSelf() on page 24
HideGraphic()
Closes an open graphic pop-up window shown in the ShowGraphic() script with the given identity name.
The HideGraphic() function has been extended to close HMI Windows identified with a given identity
name. This function is available within any Industrial Graphics client script.
Category
Graphic Client
Syntax
HideGraphic(string identity);
Parameter
Identity
The unique name of the instance that shows the graphic.
Examples
HideGraphic("i1");
Where "i1" is string Identity.
HideGraphic("<HMIName>:Window1");
Where "<HMIName>1" is the string identity.
See Also
ShowGraphic() on page 30, HideSelf() on page 24
HideSelf()
Closes the displayed graphic or layout for which this script is configured. This script function is available
within any Industrial Graphics client script.
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Category
Graphic Client
Syntax
HideSelf();
Remarks
For an Industrial Graphics script, you must call the script function within the symbol to hide the popup.
Example
HideSelf();
See Also
ShowGraphic() on page 30, HideGraphic() on page 24
Logoff()
Action script that automatically logs off the current user from a ViewApp.
Action scripts are graphic animations that are triggered by a user action such as a mouse click.
Category
Miscellaneous
Syntax
LogOff() ;
Parameter
None
Trigger
On Left-Click/Key/Touch Down
Additional Information
A log off button can be added that uses the Logoff() method to allow the user to log off from the ViewApp.
Example
Logoff() ;
See Also
ShowLoginDialog() on page 39
ShowContent()
Loads a content item into an AVEVA OMI pane. This function is available within an Industrial Graphics
client script or layout script to show the content of pane.
To load a graphic into a modal or modeless popup window, use ShowGraphic() on page 30. You can use
ShowGraphic() for both AVEVA OMI and InTouch HMI ViewApps. The ShowContent() method is for
AVEVA OMI only.
Note: While the ShowContent() function is available in object scripts through both IntelliSense and the
IDE function browser, its use in object scripts is not supported.
Category
Graphic Client
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Syntax
Dim contentInfo as aaContent.ContentInfo;
contentInfo.Content = “SA_Valve_2Way”;
contentInfo.Name =”SA_Valve_2Way1”;
contentInfo.ContentType = “Level_3”;
contentInfo.PaneName =”Pane 2”;
contentInfo.ScreenName =”Primary>”;
contentInfo.SearchScope = aaContent.SearchScope.Self;
ShowContent( contentInfo );
Parameter
ContentInfo
Description of the content to be shown and where to show it (which screen and pane)
Data Type
aaContent.ContentInfo
Example
Show content in a pane
dim contentInfo as aaContent.ContentInfo;
Dim cpValues [2] as aaContent.PropertyOverrideValue;
cpValues[1] = new aaContent.PropertyOverrideValue("CP1", "20", true);
cpValues[2] = new aaContent.PropertyOverrideValue("CP2", "Pump.PV.TagName",
false);
contentInfo.Content = "Symbol1";
contentInfo.Name = "S12";
contentInfo.ContentType = "Overview";
contentInfo.OwningObject = "Enterprise";
contentInfo.PaneName = "Pane 1";
contentInfo.ScreenName = "Wall";
contentInfo.PropertyOverrideValues = cpValues;
contentInfo.SearchScope = aaContent.SearchScope.PrimaryScreen;
ShowContent ( contentInfo );
aaContent.ContentInfo Properties
ContentInfo is a predefined structure that contains the data members described in the following
table.
String properties can be a concatenation of string and/or custom properties.
Note: See "Terms," below, for definitions of Content Type, Layout, Pane, Screen Profile, Primary
Screen, and Source Screen.
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Property
Definition
Data Type
Required/
Optional
Content
A unique name for an item, either in the Graphic
Toolbox or associated with an asset, that
specifies the content to be loaded into the pane.
Content can be a symbol, a layout, or external
content.
String
Required
Additional
information
"Content" is the name of the item within the Graphic Toolbox or associated
with an asset. It can be a symbol, a layout, or external content item.
Symbol (graphic), layout, and external content names are listed in the
Graphic Toolbox and in the Toolbox tab of the Layout and ViewApp editors.
Relative names, for example, "Me.S1," can also be used to designate
content.
If the specified content is already shown, invoking ShowContent again closes
the open content and reopens it.
However, if the content is a symbol and you are using object wizards that
include Symbol Wizard custom property selections, and the symbol has an
owning object, use the symbol's absolute name. This allows the correct
symbol configuration to be shown for the instance. See Owning Object,
below, for more information.
Content name must be unique. Application Server does not check for
duplicated names. If Content is duplicated, open content with the same name
is closed, and the content with the duplicated name is opened in its place.
PropertyOverrides and other ContentInfo parameters are updated with any
new specified values.
If the same content item is used in multiple panes of the layout, and the
"Content" property is specified by the HideContent() method, all instances of
the content item are hidden. To specify a single instance, use the "Name"
property instead.
Example
contentInfo.Content =
"UserDefinedObject_001.Symbol_001";
Name
The auto-generated (or user-edited) name of a
unique content item. The name is created when
the content item is added to a layout pane.
String
Optional
Additional
information
"Name" must be unique within a layout. Name can be duplicated in nested
layouts, as long as the name is not duplicated within a nested single layout or
the top level layout.
If content with the same Name is open within the SearchScope, the
matching, open content is closed. A new instance of the matching content
opens in the pane specified by the ShowContent call.
When Name is specified in a HideContent call, only the uniquely-named
content is closed. If "Content" is specified and the "Name" property is not
specified, all items in the layout with the same content name are hidden.
Example
contentInfo.Name = "Symbol_011";
ScreenName
Specifies the screen that contains a pane in
which to place the content.
String
Optional
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Additional
information
ScreenNames are configured in the Screen Profile Editor. See Screen
Profiles in the System Platform Help for additional information.
Example
contentInfo.ScreenName = "Wall";
PaneName
Specifies the pane in which to place the content.
String
Optional
Additional
information
PaneNames are configured in the Layout Editor. See Layouts in the System
Platform Help for additional information.
Example
contentInfo.PaneName = "Pane1";
ContentType
Specifies the content type, for example,
"Overview," "Navigation," or "Faceplate."
String
Optional
Additional
information
ContentType is matched against the Content Type parameter that can be set
for a pane in the Layout Editor. ContentType is used to override the actual
type of the specified Content. If ContentType is not specified, Content is
examined for its type of content. See Layouts in the System Platform Help for
additional information about content types.
Example
contentInfo.ContentType = "Overview";
SearchScope
When ScreenName has not been specified,
SearchScope specifies which screen or screens
will be searched for a pane that matches the
specified PaneName or content type.
The default SearchScope is "Self."
Enum
Optional
Additional
information
SearchScope is an enum with the following values:
Self searches for matching content within the panes of the NESTED
layout (an embedded layout) from which the ShowContent call was
made. If SearchScope is not specified, "Self" is the default.
In contrast to "Self," the remaining SearchScope values reference only
the top level layout, not nested layouts.
AllScreens searches for matching content within the panes of all
screens in the top level layout. The search starts with the source screen,
then the primary screen, and then any remaining screens in alphabetical
order.
SourceScreen searches for matching content only within the panes of
the top level layout from which ShowContent was called.
PrimaryScreen searches for matching content only within the panes of
the screen designated in the Screen Profile as the primary screen.
Nested
Layout
If SearchScope is Self or is not specified, and ShowContent was called from
a nested (embedded) layout, ShowContent searches for a matching pane
within the nested layout.
When SearchScope is All, Source, or Primary, or if the ScreenName is
specified, ShowContent searches for matching content within the top-level
layout only.
Example
contentInfo.SearchScope =
aaContent.SearchScope.PrimaryScreen;
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Property
Overrides
PropertyOverrides sets custom property
overrides if a graphic has been specified by the
Content property. Each override must include
the custom property name and the override
value.
Property
Override
ValuePair[]
array
Optional
Additional
information
Property overrides are specified as a key-value pair, with the property name
enclosed in quotes.
Example
Dim cpValues [2] as aaContent.PropertyOverrideValue;
cpValues[1] = new aaContent.PropertyOverrideValue("CP1",
"20", true);
cpValues[2] = new aaContent.PropertyOverrideValue("CP2",
"Pump.PV.TagName", false);
OwningObject
Sets the owning object of the content shown by
the ShowContent() script function.
String
Optional
Additional
Information
Can be a concatenation of constant strings and reference strings.
Can be browsed using the Display Automation Object Browser, or you can
type the name of the owning object.
Note: The OwningObject property sets references for the graphic, but is not
associated with the GraphicName property if the symbol is part of an Object
Wizard. Therefore, if you are scripting a symbol with an owning object,
specify the owning object name as part of the GraphicName property, for
example, UserDefined_001.Pump_001.
Example
contentInfo.OwningObject = "Enterprise";
Terms
Content type: specifies the type of content represented by a pane.
Content: the name of a graphic, layout, or external content item as it is listed within the the Graphic
Toolbox. This is displayed as the Content property in the Layout Editor when the content item is added to
a layout.
Name: the unique name assigned to an instance of a content item, when it is added to a layout. This is
displayed as the Name property in the Layout Editor when the content item is added to a layout, and can
be edited.
Layout: consists of one or more rectangular areas called panes that contain content shown in a
ViewApp. A layout is associated with a screen, or it can be embedded within a pane of another layout.
Embedded or Nested Layout: In the context of ShowContent and HideContent, an embedded layout is
a layout that is placed inside a pane of a containing layout. When SearchScope is "Self" (default),
embedded layouts are searched for content that matches the parameters specified in the
ShowContent/HideContent call.
Pane: rectangular area of a layout that can hold a single piece of content.
Primary screen: represents the main screen of a workstation that will show a running ViewApp
Screen Profile: defines the physical characteristics of one or more client workstation screens that will
show a running ViewApp and how these screens are arranged with respect to each other.
Source screen: screen from which ShowContent or HideContent was called.
See Also
HideContent() on page 20
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ShowGraphic() on page 30
ShowGraphic()
Shows a graphic within a pop-up window. The ShowGraphic() function has been extended to call
InTouch HMI Windows and AVEVA OMI layouts. This function is available within any Industrial Graphics
client script or OMI layout script.
Category
Graphic Client
Syntax
Show a graphic within a pop-up window
Dim graphicInfo as aaGraphic.GraphicInfo;
graphicInfo.Identity = "<Identity>";
graphicInfo.GraphicName = "<SymbolName>";
ShowGraphic( graphicInfo );
Call an HMI window
Dim graphicInfo as aaGraphic.GraphicInfo;
graphicInfo0.Identity = "<<HMIName>:WindowName>";
ShowGraphic( graphicInfo );
Parameter
GraphicInfo
Data Type
aaGraphic.GraphicInfo
Examples
Show graphic within a pop-up window
ShowGraphic (graphicInfo);
Show an HMI window
Dim graphicInfo0 as aaGraphic.GraphicInfo;
graphicInfo0.Identity = "<HMIName>:Window1";
ShowGraphic( graphicInfo0 );
aaGraphic.GraphicInfo Properties
Any string properties can be a concatenation of strings and/or custom properties.
Identity
A unique name that identifies which instance has opened the graphic.
Data Type
String
Additional Information
Mandatory
The same Identity is used in the HideGraphic() script function to close the pop-up window.
Valid Range
The name cannot contain more than 329 characters.
The name must contain at least one letter.
Valid characters are alphanumeric and special characters ($, #, _).
Example
graphicInfo.Identity = "i1";
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GraphicName
The name of the graphic to show.
Data Type
String
Valid Range
The name cannot contain more than 329 characters.
The name must contain at least one letter.
Valid characters are alphanumeric and special characters ($, #, _).
Additional Information
Mandatory
Browse using the Display Galaxy Browser or directly type the graphic name.
Galaxy name can come from:
o Graphic Toolbox, for example:
"Symbol_001"
o Instances, absolute or hierarchical, for example:
"Userdefined_001.Symbol1", "Userdefined_001.Pump_001.S1"
o Relative reference, for example:
"Me.Symbol_001"
Use an absolute name to specify the symbol name and owning object if you are using an Object
Wizard with Symbol Wizard custom property selections. This allows the correct symbol configuration
to be shown for the instance. See Owning Object, below, for more information.
If you type any invalid character or exceed the character limit, the system shows a warning message
at run time. There is no validation at design time.
The graphic name can be a concatenation of constant strings and reference strings. For
example:"Pump_001" + ".Symbol_001"; cp1 + ".Symbol_001", where the value of
cp1 = "Pump_001"; or Obj1.Str1 + ".Symbol_001", where the value of Obj.Str1
= "Pump_001".
Examples
Graphic Toolbox Reference
graphicInfo.GraphicName = "S1";
Absolute Reference
graphicInfo.GraphicName = "OwningObjectName.SymbolName";
OwningObject
The owning object of the graphic shown by the ShowGraphic() script function.
Data Type
String
Default Value
Empty
Additional Information
Optional
Can be a concatenation of constant strings and reference strings.
Can be browsed using the Display Automation Object Browser, or you can type the name of the
owning object.
Note: The OwningObject property sets references for the graphic, but is not associated with the
GraphicName property if the symbol is part of an Object Wizard. Therefore, if you are scripting a
symbol with an owning object, specify the owning object name as part of the GraphicName property,
for example, UserDefined_001.Pump_001.
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Example
graphicInfo.OwningObject = "UserDefined_001";
HasTitleBar
Determines if the graphic is shown with a title bar.
Data Type
Boolean
Default Value
True
Example
graphicInfo.HasTitleBar = false;
WindowTitle
Specifies the title shown in the window title bar.
Data Type
String
Default Value
Empty
Valid Range
Limit 1024 characters
Additional Information
Can be a constant string, a reference, or an expression.
If you change the owning object for an AutomationObject graphic, the window title is updated
accordingly.
If the WindowTitle parameter is empty, the value of the Identity parameter is shown on the title bar.
Example
graphicInfo.WindowTitle = "Graphic01";
WindowType
Specifies whether window type is modal or modeless.
Data Type
Enum
Default Value
Modeless
Valid Range
0, 1
Enumerations
WindowType
Integer
Modal
0
Modeless
1
Examples
graphicInfo.WindowType = aaGraphic.WindowType.<windowtype>;
graphicInfo.WindowType = 1;
HasCloseButton
Determines if the pop-up window has a close button.
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Data Type
Boolean
Default Value
True
Example
graphicInfo.HasCloseButton = false;
Resizable
Determines if the pop-up window is resizable.
Data Type
Boolean
Default Value
False
Example
graphicInfo.Resizable = true;
WindowLocation
Specifies the location of the pop-up window.
Data Type
Enum
Default Value
Center
Valid Range
One of 0–12
Enumerations
WindowLocation
Integer
Center
0
Above
1
TopLeftCorner
2
Top
3
TopRightCorner
4
LeftOf
5
LeftSide
6
RightSide
7
RightOf
8
BottomLeftCorner
9
Bottom
10
BottomRightCorner
11
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WindowLocation
Integer
Below
12
Additional Information
If you have selected Desktop as the window relative position, Above, LeftOf, RightOf, and Below are
invalid.
For more information about the behavior of the WindowLocation parameter, see "Working with the
Show/Hide Graphics Script Functions," in the Creating and Managing Industrial Graphics User
Guide.
Examples
graphicInfo.WindowLocation = aaGraphic.WindowLocation.<WindowLocation>;
graphicInfo.WindowLocation = 1;
WindowRelativePosition
Specifies the relative position of the pop-up window.
Data Type
Enum
Default Value
Desktop
Valid Range
One of 0–8
Enumerations
WindowRelativePosition
Integer
Desktop
0
Window
1
ClientArea
2
ParentGraphic
3
ParentElement
4
Mouse
5
DesktopXY
6
WindowXY
7
ClientAreaXY
8
Examples
graphicInfo.WindowRelativePosition =
aaGraphic.WindowRelativePosition.<WindowRelativePosition>;
graphicInfo.WindowRelativePosition = 1;
RelativeTo
Specifies the size of the pop-up window relative to the graphic, desktop, or customized width and
height.
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Data Type
Enum
Default Value
Graphic
Valid Range
One of 0–2
Enumerations
RelativeTo
Integer
Graphic
0
DeskTop
1
CustomizedWidthHeight
2
Additional Information
If you enter aaGraphic.RelativeTo.CustomizedWidthHeight, you can include the values of the height
and width in the script. Otherwise, the default values are used.
Examples
graphicInfo.RelativeTo = aaGraphic.RelativeTo.<RelativeTo>;
graphicInfo.RelativeTo = 1;
X
The horizontal position of the pop-up window.
Data Type
Integer
Default Value
0
Valid Range
-2,147,483,648 through 2,147,483,647
Additional Information
If X is beyond the integer range, an overflow message appears in the Logger at run time.
This parameter is applicable only if the value of the WindowRelativePosition parameter is
DesktopXY, WindowXY, or ClientAreaXY.
Unlike the ShowSymbol animation, there is no boundary for this value.
Examples
graphicInfo.X = 100;
Y
Specifies the vertical position of the pop-up window.
Data Type
Integer
Default Value
0
Valid Range
-2,147,483,648 through 2,147,483,647
Additional Information
If Y is beyond integer range, a proper overflow message will appear in the Logger at run time.
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This value is applicable only if WindowRelativePosition is DesktopXY, WindowXY, or ClientAreaXY.
Unlike the ShowSymbol animation, there is no boundary for this value.
Examples
graphicInfo.Y = 100;
Width
Specifies the width of the pop-up window.
Data Type
Integer
Default Value
100
Valid Range
0–10000
Additional Information
Applicable only if RelativeTo is CustomizedWidthHeight
You can specify either the height or the width of the pop-up window. The system calculates the other,
based on the aspect ratio of the symbol.
If you enter an out-of-boundary value, the system shows an "Out of range" message at run time. If
the value > 10000, it is set at 10000. If the value < 0, it is set at 0.
Examples
graphicInfo.width = 500;
Height
Specifies the height of the pop-up window.
Data Type
Integer
Default Value
100
Valid Range
0–10000
Additional Information
Applicable only if RelativeTo is the value of the CustomizedWidthHeight parameter.
You can specify either the height or the width of the pop-up window. The system calculates the other,
based on the aspect ratio of the symbol.
If you enter an out-of-boundary value, the system shows an "Out of range" message at run time. If
the value > 10000, it is set at 10000. If the value < 0, it is set at 0.
Examples
graphicInfo.height = 500;
TopMost
Sets a value that indicates whether the ShowGraphic appears in the top most z-order window. A
ShowGraphic whose Topmost property is set to true appears above all windows whose TopMost
properties are set to false (same as Windows Task Manager).
Data Type
Boolean
Default Value
False
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Additional Information
ShowGraphic windows whose Topmost properties are set to true appear above all windows whose
Topmost properties are set to false. In a group of windows that have the Topmost property set to
true, the active window is the topmost window.
Note: Do not create scripts that launch a non-TopMost Modal dialog from a TopMost dialog. Users
will not be able to interact with the View if the Modal dialog is completely hidden by any TopMost
window.
Example
graphicInfo.TopMost = true;
ScalePercentage
Sets the scaling percentage of the pop-up window and the graphic it contains.
Data Type
Integer
Default Value
100
Valid Range
0–1000
Additional Information
If you enter an out-of-boundary value, the system shows an "Out of range" message at run time. If
the value > 1000, it is set at 1000. If the value < 0, it is set at 0.
Examples
graphicInfo.ScalePercentage = 150;
KeepOnMonitor
Specifies that a pop-up window should appear entirely within the boundaries of an application
window.
Data Type
Boolean
Default Value
True
Example
graphicInfo.KeepOnMonitor = true;
StretchGraphicToFitWindowSize
Determines if the graphic is scaled to the current size of the pop-up window.
Data Type
Boolean
Default Value
True
Additional Information
Applicable only if the value of the ScalePercentage parameter is greater than 100.
Examples
graphicInfo.StretchGraphicToFitWindowSize = false;
StretchWindowToScreenWidth
Determines if the pop-up window is scaled to the same width as the screen.
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Data Type
Boolean
Default Value
False
Additional Information
Applicable only if the WindowRelativePosition parameter is Desktop, Window, Client Area,
ParentGraphic, or ParentElement.
Examples
graphicInfo.StretchWindowToScreenWidth = true;
StretchWindowToScreenHeight
Determines if the pop-up window is scaled to the same height as the screen.
Data Type
Boolean
Default Value
False
Additional Information
Applicable only if the WindowRelativePosition parameter is Desktop, Window, Client Area,
ParentGraphic, or ParentElement.
Examples
graphicInfo.StretchWindowToScreenHeight = true;
CustomProperties
Sets the custom properties of the symbol being shown.
Data Type
CustomPropertyValuePair[] array
Additional Information
The first three parameters are custom property name, value, and IsConstant.
Both custom property and the value can be a constant string, reference, or concatenation of strings.
If the parameter IsConstant = True, the value is treated as a constant. Otherwise, the value is treated
as a reference.
The array index starts at 1.
Examples
Dim cpValues [4] as aaGraphic.CustomPropertyValuePair;
cpValues[1] = new aaGraphic.CustomPropertyValuePair("CP1", 20, true);
cpValues[2] = new aaGraphic.CustomPropertyValuePair("CP2", Pump.PV.TagName,
true);
cpValues[3] = new aaGraphic.CustomPropertyValuePair("CP3", "CP"+var1, CP2 +
"001" + ".Speed", true);
cpValues[4] = new aaGraphic.CustomPropertyValuePair("CP3",
"<HMIName>:Tag1", false);
graphicInfo.CustomProperties = cpValues;
Remarks
Any parameter that has default value in the GraphicInfo is optional. If no input value specified for these
parameters, the default values are used at run time. Any parameter except the Enum data type can be a
constant, reference, or expression.
For more information, see "Working with the Show/Hide Graphics Script Functions" in the Industrial
Graphic Editor User Guide.
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Examples for ShowGraphic
Basic script example:
Dim graphicInfo as aaGraphic.GraphicInfo;
graphicInfo.Identity = "Script_001";
graphicInfo.GraphicName = "Symbol_001";
ShowGraphic( graphicInfo );
Advanced script example:
Dim graphicInfo as aaGraphic.GraphicInfo;
Dim cpValues [2] as aaGraphic.CustomPropertyValuePair;
cpValues[1] = new aaGraphic.CustomPropertyValuePair("CP1", 20, true);
cpValues[2] = new aaGraphic.CustomPropertyValuePair("CP2", "Pump.PV.TagName",
false);
graphicInfo.Identity = "i1";
graphicInfo.GraphicName = "S1";
graphicInfo.OwningObject = "UserDefined_001";
graphicInfo.WindowTitle = "Graphic01";
graphicInfo.Resizable = false;
graphicInfo.CustomProperties=cpValues;
ShowGraphic( graphicInfo );
Where "i1" is string Identity and the symbol "S1" contains custom property CP1 and CP2.
See Also
HideSelf() on page 24
ShowLoginDialog()
Action script that shows a login dialog box with fields to enter a username and password. A typical login
interface includes a login button that is selected by the user to show the Login dialog box with fields to
enter a username and password.
Action scripts are graphic animations that are triggered by a user action such as a mouse click.
Category
Miscellaneous
Syntax
ShowLoginDialog() ;
Parameter
None
Trigger
On Left-Click/Key/Touch Down
Additional Information
A log off button can be added that uses the Logoff() method to allow the user to log off from the ViewApp.
Example
ShowLoginDialog() ;
See Also
Logoff() on page 25
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InTouch Functions
The following InTouch functions can be used within the script editor contained in the Industrial Graphic
Editor. In all functions that specify tag names as parameters, you can use InTouch tags from your
InTouch application.
InTouch script functions can be used only in symbol scripts. InTouch script functions do not work in
ArchestrA object scripts. Even though the object script will not work, no error or warning is generated.
Note: Using the Convert to Industrial Graphic option in InTouch scripts may wrongly append the term
"InTouch:" to the script function name. To avoid errors, remove the term "InTouch:" from the script
function name.
AddPermission() Function
Assigns a certain InTouch access level to a given user group on the local system or on the domain. When
a user belonging to that group logs on to the InTouch HMI after the AddPermission() function is called, he
or she receives the specified access level.
Category
security
Syntax
DiscreteTag=AddPermission( "Domain", "Group", AccessLevel);
Arguments
Domain
Name of the domain or local computer in which the group is located.
Group
Windows user group.
AccessLevel
InTouch access level that you want to associate with the given group.
Remarks
Valid for operating system security only. When this function is called, it checks for the presence of the
specified group in the specified domain or workgroup. If successful, TRUE is returned, and the specified
Access Level is associated with the group for subsequent user log ons. In all other cases, (that is, if an
invalid value is specified for any of the arguments) FALSE is returned.
This function is typically configured to run on application startup. It does not affect users that are currently
logged on. Only users that log on after AddPermission() is successfully called receive the access level
associated with their group.
Examples
DiscreteTag=AddPermission( "corporate_hq", "InTouchAdmins", 9000);
DiscreteTag=AddPermission( "johns01", "InTouchUsers", 5000);
See Also
PostLogonDialog(), InvisibleVerifyCredentials(), IsAssignedRole(), AttemptInvisibleLogon(),
QueryGroupMembership()
AttemptInvisibleLogon() Function
The AttemptInvisibleLogon() function can be used in a script to log on a user to InTouch using the
supplied credentials. The user is not required to enter a password or user ID.
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Category
security
Syntax
DiscreteTag=AttemptInvisibleLogon( "UserId", "Password", "Domain" );
Arguments
UserId
A valid user account name.
Password
Password of the user.
Domain
Name of the local computer, workgroup, or domain to which the user belongs. This argument applies
only if the current security type is operating system-based.
Return Value
Returns TRUE if authentication is successful. Otherwise, it returns FALSE.
Remarks
An attempt is made to log on to the InTouch HMI using the supplied credentials.
If the logon attempt succeeds, then TRUE is returned and the $OperatorDomain, $OperatorName,
$AccessLevel, and $Operator system tags are updated accordingly.
If the log on attempt fails, then FALSE is returned, and the currently logged on user (if any) continues
to be the current user.
The Domain argument is only valid for operating system-based security. If ArchestrA security mode is in
use and if ArchestrA security is in turn using operating system-based security, the UserId argument
should contain the fully qualified user name with domain name or computer name.
Examples
When security is operating system-based:
DiscreteTag=AttemptInvisibleLogon("UserId", "Password", "Domain" );
When security is either InTouch-based or ArchestrA-based:
DiscreteTag=AttemptInvisibleLogon("UserId", "Password", "" );
See Also
PostLogonDialog(), InvisibleVerifyCredentials(), IsAssignedRole(), QueryGroupMembership(),
AddPermission()
ChangePassword() Function
Shows the Change Password dialog box, allowing the logged on operator to change his/her password.
Category
security
Syntax
[Result=]ChangePassword();
Return Value
Returns one of the following integer values:
0 = Cancel was pressed.
1 = OK was pressed.
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Remarks
If the operator uses a touch screen, the operator can use the alphanumeric keyboard to enter the new
password.
Example
The following script can be placed on a button or called from a condition script or data change script.
Errmsg=ChangePassword();
EnableDisableKeys() Function
Enables/disables key filters for the Alt, Escape, and Windows keys.
Category
View
Syntax
EnableDisableKeys(AltKey, EscKey, WinKey);
Parameters
AltKey
Integer to enable or disable key filters for the Alt key:
1 = enable filter (disable Alt key)
0 = disable filter (enable Alt key)
EscKey
Integer to enable or disable key filters for the Escape key:
1 = enable filter (disable Esc key)
0 = disable filter (enable Esc key)
WinKey
Integer to enable or disable key filters for the Windows key:
1 = enable filter (disable Win key)
0 = disable filter (enable Win key)
Remarks
Disabling the Alt key also disables the Win+L key combination (for locking the Windows desktop). Win+L
is the shortcut for another combination of keys that involves the Alt key. Thus, disabling the Alt key also
disables the shortcut for locking the Windows desktop.
Disabling the Esc key disables it for all actions.
Example(s)
EnableDisableKeys(0,0,0); // enable all three keys
EnableDisableKeys(1,1,1); // disable all three keys
EnableDisableKeys(0,0,1); // enable Alt and Escape keys, disable Windows key.
FileCopy() Function
Copies a source file to a destination file and returns a status result. This function may take a longer time
to execute and is executed in multiple stages:
1. FileCopy() function is called and an immediate result is returned, indicating success or failure of the
file copy initialization.
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2. FileCopy() function executes the copy procedure in the background, and InTouch scripting continues
execution while the file copying is in progress. You can monitor the file copying progress with an
integer tag.
3. FileCopy() function returns a file copy result, indicating success or failure of the file copy procedure.
If the destination folder is not available (i.e. another computer on the network), the function waits for up to
10 seconds to time out, and then posts a message in the Logger.
Note: Do not use the FileCopy() function in asynchronous QuickFunctions.
Syntax
result = FileCopy (sourcefile, destfile, progresstag)
Parameters
sourcefile
Full path and file name of the file to be copied. A literal string value, message tagname, or string
expression. You can use the wildcard characters (* and ?) in this parameter to copy just files
matching a specified criteria. The path name can also be a UNC path name.
destfile
Full path and file name (or just path name) of the destination. A literal string value, message
tagname, or string expression. The path name can also be a UNC path.
progresstag
Name of an integer tag enclosed in double quotes that will contain a value indicating the file copy
progress. A literal string value, message tagname (such as a message tag containing the value
"IntTag.Name") or string expression. The values have following meaning:
0 - FileCopy() procedure is still in progress.
1 - FileCopy() procedure has completed successfully.
-1 - FileCopy() procedure completed with errors.
Return Value
A value of -1, 0, or 1 indicating the following:
1 - FileCopy() function successfully called.
0 - Error when calling the FileCopy() function because another FileCopy() procedure is already in
progress.
-1 - Error when calling the FileCopy() function because of a non-existent source file or the destination
is read only.
Example(s)
This script copies the file c:\MyData\output.log to the directory d:\archive and renames the file to
output.txt. The progress of the file copy is written to the integer tag Monitor.
Status=FileCopy("c:\MyData\output.log","d:\archive\output.txt","Monitor");
This script copies all files with file ending .txt in the c:\ root directory to the destination directory
c:\Backup.
Status=FileCopy("c:\*.txt", "c:\Backup", "Monitor");
This script copies a file whose full path and file name is contained in the message tag LogFile to the
destination directory c:\results\ and renames it to logxxx.txt where xxx is a timestamp.
Status=FileCopy(LogFile, "c:\results\log" + $DateString + $TimeString + ".txt",
"Monitor");
FileDelete() Function
Deletes an individual file.
Syntax
result = FileDelete (filename)
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Parameters
filename
The path name and file name of the file to delete. A literal string value, message tagname, or string
expression. UNC path names are supported.
Remarks
Do not use the wildcard characters (* and ?) with the FileDelete() function and do not use the FileDelete()
function in asynchronous QuickFunctions.
The FileDelete() function does not delete directories.
Return Value
A value indicating success or failure of the file deletion:
1 - file is deleted successfully
0 - file is not deleted successfully. Possible causes are attempts to delete a read only or a
non-existent file.
Example(s)
This script deletes the file c:\Data.txt and returns 1 if the file was found and deleted successfully.
Status=FileDelete("c:\Data.txt");
FileMove() Function
Moves a source file to a destination file and returns a status result. It can be also used to rename a file.
This function may take a longer time to execute and executes in multiple stages:
1. FileMove() function is called and an immediate result is returned, indicating success or failure of the
file move initialization.
2. FileMove() function executes the move procedure in the background, InTouch scripting continues
execution while the file moving is in progress. You can monitor the file moving progress with an
integer tag.
3. FileMove() function returns a file move result, indicating success or failure of the file moving
procedure.
Do not use the FileMove() function in asynchronous QuickFunctions.
Syntax
result = FileMove (sourcefile, destfile, progresstag)
Parameters
sourcefile
Full path and file name of the file to be moved. A literal string value, message tagname, or string
expression. You can use the wildcard characters (* and ?) in this parameter to move just files
matching a specified criteria. The path name can also be a UNC path name.
destfile
Full path and file name (or just path name) of the destination. A literal string value, message
tagname, or string expression. The path name can also be a UNC path.
progresstag
Name of an integer tag enclosed in double quotes that will contain a value indicating the file moving
progress. A literal string value, message tagname (such as a message tag containing the value
"IntTag") or string expression. The values have following meaning:
0 - FileMove() procedure is still in progress
1 - FileMove() procedure has completed successfully
-1 - FileMove() procedure completed with errors
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Return Value
A value of-1, 0, or 1 indicating the following:
1 - FileMove() function successfully called
0 - Error when calling the FileMove() function because another FileMove() procedure is already in
progress
-1 - Error when calling the FileMove() function. Possible errors are attempts to move a non-existent
file.
Example(s)
This script moves the file c:\MyData\output.log to the directory d:\archive and renames the file to
output.txt. The progress of the file moving is written to the integer tag Monitor.
Status=FileMove("c:\MyData\output.log","d:\archive\output.txt","Monitor");
This script moves all files with file ending .txt in the c:\ root directory to the destination directory
c:\Backup.
Status=FileMove("c:\*.txt", "c:\Backup", "Monitor");
This script moves a file whose full path and file name is contained in the message tag LogFile to the
destination directory c:\results\ and renames it to logxxx.txt where xxx is a timestamp.
Status=FileMove(LogFile, "c:\results\log" + $DateString + $TimeString + ".txt",
"Monitor");
FileReadFields() Function
Reads the values contained in a csv file into a series of tagnames. You can use this function to load a set
of tagname values.
Commas are the only supported delimiter.
This function can only be used for synchronous calls.
Syntax
[result = ] FileReadFields (filename, offset, starttag, numberoffields)
Parameters
filename
Name of the csv file to read the data from. A literal string value, a message tagname or a string
expression.
offset
Location (in bytes) in the file to start reading. A literal integer value, integer tagname, or integer
expression.
starttag
Name of the first tagname that receives the first read data item. The tagname must be enclosed with
double quotes and end in a number, such as "MyTag1". A literal string value, message tagname
(such as a message tagname containing the value "MyTag1"), or a string expression.
numberoffields
Number of data items to read from the csv file. A literal integer value, integer tagname, or integer
expression. The first data item is read into the tagname defined in the starttag parameter,
subsequent data items into tagnames with the incremented numeral suffix of the starttag parameter
(MyTag1, MyTag2, MyTag3, ...).
Return Value
Optional new file offset (in byte) after reading the data. This can be used to read the next set of data.
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Example(s)
This script reads the values "Flour" to RecipeTag1, 27.23 to RecipeTag2, 14 to RecipeTag3, and 1 to
RecipeTag4, and returns the new file offset—if the csv file c:\set.csv contains the following data: Flour,
27.23,14,1 and if the following tags are defined: RecipeTag1:message, RecipeTag2:real,
Recipe3:integer, RecipeTag4:discrete.
FileReadFields("c:\set.csv",0,"RecipeTag1",4);
FileReadMessage() Function
Reads a specified number of bytes (or one line) of string data from a file.
Syntax
[result = ] FileReadMessage (filename, offset, messagetag, charstoread)
Parameters
filename
Name of the file to read the data from. A literal string value, a message tagname, or a string
expression.
offset
Location (in bytes) in the file to start reading from. A literal integer value, integer tagname, or integer
expression.
messagetag
Message tagname that receives the first line or number of bytes from the file. Enclose the tagname
with double quotes when using the function within the Industrial Graphics Editor Script Editor.
charstoread
Number of bytes to read from the file. Set it to 0 to read until the next line feed (LF) character. A literal
integer value, integer tagname, or integer expression.
Return Value
Contains the new byte position after the read. You can use this for subsequent reads from the file.
Example(s)
This script reads the first line of data in the file c:\Data\File.txt to the message tagname MsgTag.
FileReadMessage ("c:\Data\File.txt",0,MsgTag, 0);
FileReadMessage ("c:\Data\File.txt",0,"InTouch:MsgTag", 0);
FileWriteFields() Function
Writes the values contained in a series of tagnames to a csv file. You can use this function to save a set
of tagname values.
Commas are the only supported delimiter.
Syntax
[result = ] FileWriteFields (filename, offset, starttag, numberoffields)
Parameters
filename
Name of the csv file to write the data to. A new file is created if it does not previously exist. A literal
string value, a message tagname, or a string expression.
offset
Location (in bytes) in the file to start writing to. Use -1 to write to the end of the file (append). A literal
integer value, integer tagname, or integer expression.
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starttag
Name of the first tagname that contains the first data item to be written. The tagname must be
enclosed with double quotes and end in a number, such as "MyTag1". A literal string value, message
tagname (such as a message tagname containing the value "MyTag1") or a string expression.
numberoffields
Number of data items to write to the csv file. A literal integer value, integer tagname, or integer
expression. The first data item is written from the tagname defined in the starttag parameter to the
file, subsequent data items from tagnames with the incremented numeral suffix of the starttag
parameter (MyTag1, MyTag2, MyTag3, ...).
Return Value
Optional new file offset (in byte) after writing the data. This can be used to write the next set of data.
Example(s)
A series of InTouch tags is defined as follows:
Tagname
Data Type
Value
RecipeTag1
Message
Flour
RecipeTag2
Real
27.23
RecipeTag3
Integer
14
RecipeTag4
Discrete
1
This script writes the values contained in RecipeTag1 to RecipeTag4 to the csv file c:\set.csv.
FileWriteFields("c:\set.csv",0,"RecipeTag1",4);
So that the file c:\set.csv will contain the following data:
Flour,27.23,14,1
FileWriteMessage() Function
Writes a specified number of bytes (or one line) of string data to a file.
Syntax
[result = ] FileWriteMessage (filename, offset, messagetag, linefeed)
Parameters
filename
Name of the file to write the data to. A literal string value, a message tagname, or a string expression.
offset
Location (in bytes) in the file to start writing to. Set it to -1 to write data to the end of the file (append).
A literal integer value, integer tagname, or integer expression.
messagetag
Message tagname that contains the data to be written to the file.v
linefeed
Specifies whether to write a line feed (LF) character after writing the data to the file. Set to 1 to write
a line feed character; otherwise, set it to 0. A literal Boolean value, discrete tagname, or Boolean
expression.
Return Value
Contains the new byte position after the write. You can use this for subsequent writes to the file.
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Example(s)
This script writes the value of a message tagname MsgTag to the end of the file c:\Data\File.txt.
FileWriteMessage("c:\Data\File.txt",-1,MsgTag,1);
GetAccountStatus() Function
Returns the number of days until the user’s password expires.
Category
security
Syntax
Result=GetAccountStatus(Domain, UserID);
Arguments
Domain
Name of the domain or local computer in which the user account is located.
UserID
Windows user account name that is part of the local computer, workgroup, or domain.
Return Value
This function also returns the following values:
Result
Description
-1
Account password expired
-2
Account password never expires
-3
Account locked out
-4
Account disabled
-5
Account info failed
Remarks
Use this script function with operating system-based security. Do not use this function with the ArchestrA
security mode.
If the GetAccountStatus() function is used with ArchestrA security, the script attempts to retrieve the
account information directly from the domain controller. This works as long as the ArchestrA Galaxy
Repository is using operating system security with the same domain.
Example(s)
Status = GetAccountStatus("Corporate_HQ","Operator");
GetNodeName() Function
Returns the node name of the computer.
Syntax
GetNodeName (messagetag, nodenum);
Parameters
messagetag
Message tagname that will contain the node name. Enclose the tagname with double quotes when
using the function within the Industrial Graphics Editor Script Editor.
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nodenum
Number of characters to retrieve from the node name. A literal integer value, integer tagname, or
integer expression in the range of 0 to 131.
Example(s)
This script retrieves the node name and assigns it to the NodeName message tagname.
GetNodeName(NodeName,131);
GetNodeName("InTouch:NodeName",131);
InfoAppTitle() Function
Returns the application title or Windows task list name of a specified application that is running.
Syntax
result = InfoAppTitle (appname)
Parameters
appname
Name of the application without the .exe extension. A literal string value, message tagname, or string
expression.
Example(s)
This script returns "Calculator"
InfoAppTitle("calc")
This script returns "Microsoft Excel"
InfoAppTitle("excel")
InfoDisk() Function
Returns either the total or free space on a local or network disk drive.
Syntax
result = InfoDisk (drive, infotype, trigger);
Parameters
drive
The drive letter for which you want to retrieve information. Only the first character of a string is used.
A literal string value, message tagname, string expression.
infotype
Specifies the information type. A literal integer value, integer tagname, or integer expression with
following possible values:
1 - function returns total size of disk drive (in bytes)
2 - function returns free space of disk drive (in bytes)
3 - function returns total size of disk drive (in kilobytes)
4 - function returns free space of disk drive (in kilobytes)
trigger
A tagname (or expression) that acts as a trigger to recalculate the disk information. If the trigger
value changes the disk information is recalculated. A discrete or analog taname, or a discrete or
analog expression.
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Remarks
The trigger tag only has meaning when the InfoDisk() function is used in an animation display link. If this
function is used in a script, you can specify any literal numeric value, analog tagname, or numeric
expression.
Example(s)
Use this script in an animation display link to show the free space of disk drive C and update the
information every minute.
InfoDisk("C", 4, $Minute)
InfoFile() Function
Returns various information on a file or directory.
Syntax
result = InfoFile (filename, infotype, trigger)
Parameters
filename
The full file name or directory name you want to retrieve information about. A literal string value,
message tagname, or string expression. Can also include wildcard characters, such as "*" and "?".
infotype
The type of information you want to retrieve about the specified file or directory. A literal integer
value, integer tagname, or integer expression with following values and meaning:
1 - Existence. The InfoFile() function returns 1 if the file exists, 2 if the file is a directory and 0 if the file
or directory does not exist.
2 - Size. The InfoFile() function returns the file size in bytes.
3 - Creation timestamp. The InfoFile() function returns the time stamp as seconds that have passed
since midnight January 1st 1970. Use the StringFromTimeLocal() function to convert this value to a
message timestamp.
4 - Wildcard Search Match. The InfoFile() function returns the number of files that match a specified
wildcard search.
trigger
A tagname (or expression) that acts as a trigger to recalculate the file information. If the trigger value
changes, the file information is recalculated. A discrete or analog taname, or a discrete or analog
expression.
Remarks
The trigger tag only has meaning when the InfoFile() function is used in an animation display link. If this
function is used in a script, you can specify any literal numeric value, analog tagname, or numeric
expression.
Example(s)
This script returns 1 if the file c:\data\log.txt exists.
InfoFile("c:\data\log.txt",1,$minute)
This script returns 14223 if the file c:\data\log.txt has a file size of 14223 bytes.
InfoFile("c:\data\log.txt",2,$minute)
This script returns 1138245266 if the file c:\data\log.txt was created on 26th January 2006 at 11:14:26
AM.
InfoFile("c:\data\log.txt",3,$minute)
This script returns 14 if there are 14 files in the directory c:\data\ that have a txt ending.
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InfoFile("c:\data\*.txt",4,$minute)
InfoInTouchAppDir() Function
Returns the current InTouch application directory.
Syntax
result = InfoInTouchAppDir();
Return Value
A message tagname to contain the directory of the currently running InTouch application.
Remarks
The application directory name may be truncated when passed to a message tagname or shown in an
animation link due to the 131 characters limitation.
Example(s)
This script may return c:\documents and settings\user1\my documents\my intouch
applications\packaging.
InfoInTouchAppDir()
InTouchVersion() Function
Returns the complete InTouch version number or just parts of it.
Syntax
result = InTouchVersion (infotype);
Parameters
infotype
Specifies how the version information is returned. A literal integer value, integer tagname, or integer
expression with the following meaning:
0- function returns the whole version number
1- function returns just the major version number
2- function returns just the minor version number
3- function returns just the patch level
4- function returns just the build level
Example(s)
Function
InTouchVersion(0)
InTouchVersion(1)
InTouchVersion(2)
InTouchVersion(3)
InTouchVersion(4)
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InvisibleVerifyCredentials() Function
The InvisibleVerifyCredentials() function can be used in a synchronous QuickScript to verify the
credentials of the given user without logging the user on to the InTouch HMI.
Category
security
Syntax
AnalogTag=InvisibleVerifyCredentials( "UserId", "Password", "Domain" );
Arguments
UserId
Windows operating system user account name that is part of local computer, workgroup, or domain.
Password
Password for the account.
Domain
The Windows domain for the account.
Remarks
If the supplied combination of user, password, and domain are valid then the corresponding access level
associated with the user is returned as an integer. Otherwise, -1 is returned.
Note: The InvisibleVerifyCredentials() function must be run from a synchronous QuickScript. The
function always returns -1 if run from an asynchronous QuickScript.
This function does not change the currently logged on user. The Domain argument is only valid for
operating system-based security. If ArchestrA security is in use and if ArchestrA security is in turn using
operating system-based security, the UserId argument should contain the fully qualified user name with
domain name or computer name.
Example
AnalogTag=InvisibleVerifyCredentials( "john", "Password", "corporate_hq" );
See Also
PostLogonDialog(), AttemptInvisibleLogon(), IsAssignedRole(), QueryGroupMembership(),
AddPermission()
IsAssignedRole() Function
Determines whether the currently logged on user is a member of the specified user role. Only applies to
ArchestrA security.
Category
security
Syntax
DiscreteTag=IsAssignedRole( "RoleName" );
Arguments
RoleName
The role associated with an Application Server user.
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Remarks
Valid for ArchestrA security mode only and applies to the currently logged on user. If a user is currently
logged on and has the RoleName role assigned in the Galaxy IDE, then TRUE is returned. Otherwise,
FALSE is returned.
Example
DiscreteTag=IsAssignedRole( "Administrators" );
See Also
AttemptInvisibleLogon(), PostLogonDialog(), InvisibleVerifyCredentials(), QueryGroupMembership(),
AddPermission()
LaunchTagViewer() Function
You can start Tag Viewer only when WindowViewer is running, and only after Tag Viewer has been
enabled in WindowMaker.
For information about enabling Tag Viewer, see Configuring General WindowViewer Properties in the
InTouch® HMI Application Management and Extension Guide.
Syntax
LaunchTagViewer()
Remarks
The LaunchTagViewer() function can be executed from any script type except the application scripts
OnStartup and OnShutdown.
If Tag Viewer has not been enabled in WindowMaker, calling the function will not start Tag Viewer and a
warning message will appear in the logger.
You must have adequate security privileges to start Tag Viewer.
LogonCurrentUser() Function
Logs on to InTouch with a user account that is currently logged on to the Windows operating system.
InTouch configured with OS security: the user is logged on to WindowViewer.
InTouch configured with ArchestrA security: the user must be a member of ArchestrA OS user-based
or OS group-based security.
InTouch configured with ArchestrA OS user-based or OS group-based security and the user account
is configured with smart card credentials: user is logged on using the smart card credentials. The
user is logged off if the smart card is removed from the reader.
Category
security
Syntax
IntegerResult = LogonCurrentUser();
Return Value
Returns -1 and no change to the values assigned to $Operator, $OperatorName, $OperatorDomain, and
$AccessLevel if the logon fails.
Remarks
This function is available only in InTouch scripting, not in ArchestrA client scripting.
Example
IntegerResult = LogonCurrentUser();
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See Also
PostLogonDialog(), InvisibleVerifyCredentials(), IsAssignedRole(), AttemptInvisibleLogon(),
QueryGroupMembership(), AddPermission()
PlaySound() Function
Plays a sound from a wave file or a Windows default sound.
Syntax
Playsound (soundname, flag)
Parameters
soundname
The name of the sound or wave file. A literal string value, message tagname, or string expression. If
the sound is defined as a name, it must be defined in the Win.ini file under the [Sounds] section, for
example MC="c:\test.wav"
flag
Specifies how the sound is played. A literal integer value, integer tagname, or integer expression with
the following meanings:
0 - Play sound one time synchronously (script execution waits until sound has finished playing).
1 - Play sound one time asynchronously (script execution does not wait until sound has finished
playing).
9 - Play sound continuously (until the PlaySound() function is called again).
Example(s)
This script plays the sound of the file c:\welcome.wav one time and holds script execution until it has
finished playing.
PlaySound("c:\welcome.wav",0);
This script plays the sound Alert continuously. In the win.ini file [Sounds] section you need to associate
the sound name Alert with a sound file, such as:
Alert=c:\alert.wav.
PlaySound("Alert",9);
PostLogonDialog() Function
Shows the InTouch Logon dialog box and returns TRUE.
Category
security
Syntax
DiscreteTag=PostLogonDialog();
Examples
DiscreteTag=PostLogonDialog();
See Also
InvisibleVerifyCredentials(), AttemptInvisibleLogon(), IsAssignedRole(), QueryGroupMembership(),
AddPermission()
PrintScreen() Function
You can write a script to print the entire WindowViewer screen with the PrintScreen() function.
Syntax
PrintScreen (ScreenOption, PrintOption)
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Parameters
ScreenOption
Determines how much of the WindowViewer screen is to be printed. A literal integer value, integer
tagname, or integer expression.
1 - Print the client area, no menus (default)
2 - Print the entire window area, including menus
PrintOption
Determines how the printed image is to be stretched to fit on the printout.
o 1 - Best Fit:
image is stretched so that it fits either horizontally or vertically on the printout without changing
the aspect ratio. (default)
o 2 - Vertical Fit:
image is stretched so that it fits vertically on the printout without changing the aspect ratio. The
image may be cut off horizontally.
o 3 - Horizontal Fit:
image is stretched so that it fits horizontally on the printout without changing the aspect ratio. The
image may be cut off vertically.
o 4 - Stretch to Page:
image is stretched so that it fits horizontally and vertically on the printout. The aspect ratio may
change but the image is not truncated.
o Invalid options, including 0, default to Best Fit.
Note: Popup windows that extend beyond the WindowViewer screen area are cut off.
Example(s)
This script sends a printout of the current entire WindowViewer screen area without menus to the printer
queue. The printout contains the screen area stretched so that it fills the printout dimensions.
PrintScreen(1,4);
QueryGroupMembership() Function
Determines whether the currently logged on user is a member of the specified user group. Only applies
to operating system security.
Category
security
Syntax
DiscreteTag=QueryGroupMembership( "Domain", "Group" );
Arguments
Domain
Name of the domain or local computer in which the group is located
Group
Name of the group.
Remarks
Valid for operating system security mode only and applies to the currently logged on user. If a user is
currently logged on and if he or she is part of the group located on the domain, then TRUE is returned.
Otherwise, FALSE is returned.
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The QueryGroupMembership() function works with operating system-based security and with ArchestrA
security only when the ArchestrA security is set to operating system-based security.
Examples
DiscreteTag=QueryGroupMembership( "corporate_hq", "InTouchAdmins" );
DiscreteTag=QueryGroupMembership( "JohnS01", "InTouchUsers" );
See Also
PostLogonDialog(), InvisibleVerifyCredentials(), IsAssignedRole(), AttemptInvisibleLogon(),
AddPermission()
ShowHome() Function
Opens the InTouch window(s) you specified in the Home Windows tab in the WindowViewer Properties
dialog box and closes any other windows.
Syntax
ShowHome();
Starting a Windows Application
In a script, you can start a Windows application using the StartApp command.
Syntax
StartApp appname;
Parameters
appname
Path and file name of the application you want to start. A literal string value, message tagname, or
string expression.
Note: You need to know the path and file name of the application. If the application is in a directory that
is part of the Windows PATH environment variable, you only need to pass the file name (without path).
Example(s)
This script starts Microsoft Calculator.
StartApp "calc"
SwitchDisplayLanguage() Function
Switches the display of visible, static texts and alarm fields in a desired language for which translated
strings are provided.
Category
misc
Syntax
SwitchDisplayLanguage(LocaleID);
Parameter
LocaleID
The language in which static text strings and alarm fields are to be shown at run time.
Example(s)
In this example, German is the language to be shown at run time.
SwitchDisplayLanguage(1031);
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See Also
$Language system tag
TseGetClientId() Function
Returns a string version of the client ID (the TCP/IP address of the client) if the View application is
running on a Terminal Server client. This client ID is used internally to generate SuiteLink server names
and logger file names. Otherwise, the TseGetClientId() function returns an empty string.
Syntax
MessageResult=TseGetClientId();
Example
The client IP address 10.103.202.1 is saved to the MsgTag tag.
MsgTag=TseGetClientID();
TseGetClientNodeName() Function
Returns the client node name if the View application is running on a Terminal Server client assigned a
name that can be identified by Windows. Otherwise, the TseGetClientNodeName() function returns an
empty string.
Syntax
MessageResult=TseGetClientNodeName();
Example
The client node name is returned as the value assigned to the MsgTag tag.
MsgTag=TseGetClientNodeName();
TseQueryRunningOnClient() Function
Returns a non-zero integer value if the View application is running on a Terminal Services client.
Otherwise, it returns a zero.
Syntax
Result=TseQueryRunningOnClient();
Return Value
Returns 0 if View is not running on a Terminal Services client.
Example
IntTag is set to 1 if WindowViewer is running on a Terminal Services client.
IntTag=TseQueryRunningOnClient;
TseQueryRunningOnConsole() Function
The TseQueryRunningOnConsole() function can be run from a script to indicate whether the View
application is running on a Terminal Services console.
Syntax
Result=TseQueryRunningOnConsole();
Return Value
Returns a non-zero integer value if the View application is running on a Terminal Services console.
Otherwise, the TseQueryRunningOnConsole() function returns a zero.
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Example
IntTag is set to 1 if WindowViewer is running on a Terminal Services console.
IntTag=TseQueryRunningOnConsole();
Math Functions
Use math functions to return the answer to the specified mathematical expression.
In QuickScript, all mathematical operations are calculated internally as double, regardless of the operand
data type. Following standard mathematical rules, the result is always rounded in division operations to
maintain accuracy. Rounding only occurs on the end result, not intermediate values, and the quotient will
match the target data type. This is the standard methodology for SCADA and DCS systems, and
provides the data integrity, precision retention, time stamps, and overall data quality propagation and
aggregation needed for these systems.
If you want to round at each step instead of only at the final result, you can leverage the support built into
QuickScript for .NET libraries and utilize the System.Math.Floor and System.Math.Round methods to
explicitly round the intermediate steps. As an example, consider the following script:
dim dividend as integer;
dim divisor as integer;
dim quotient as integer;
dim remainder as integer;
dividend = 8;
divisor = 3;
LogMessage("Value of dividend = " + dividend);
LogMessage("Value of divisor = " + divisor);
quotient = dividend/divisor;
LogMessage("Value of quotient = " + quotient);
remainder = dividend mod divisor;
LogMessage ("Value of remainder = " + remainder);
dividend = divisor*quotient +remainder;
LogMessage ("Value of dividend = " + dividend);
The result is: 8 / 3 = 3
If, instead, you want to drop the remainder (not rounding the final result to the nearest integer), you could
add a call to the Math.Floor method and use the following:
dim dividend as integer;
dim divisor as integer;
dim quotient as integer;
dim remainder as integer;
dividend = 8;
divisor = 3;
LogMessage("Value of dividend = " + dividend);
LogMessage("Value of divisor = " + divisor);
// *** Add call to Math.Floor. This drops the remainder rat her than rounding the
internal Double result to integer
quotient = System.Math.Floor(dividend/divisor);
LogMessage("Value of quotient = " + quotient);
remainder = dividend mod divisor;
LogMessage ("Value of remainder = " + remainder);
dividend = divisor*quotient +remainder;
LogMessage ("Value of dividend = " + dividend);
The result is: 8 / 3 = 2 (remainder 2)
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Abs()
Returns the absolute value (unsigned equivalent) of a specified number.
Category
Math
Syntax
Result = Abs( Number );
Parameter
Number
Any number or numeric attribute.
Examples
Abs(14); ' returns 14
Abs(-7.5); ' returns 7.5
ArcCos()
Returns an angle between 0 and 180 degrees whose cosine is equal to the number specified.
Category
Math
Syntax
Result = ArcCos( Number );
Parameter
Number
Any number or numeric attribute with a value between -1 and 1 (inclusive).
Examples
ArcCos(1); ' returns 0
ArcCos(-1); ' returns 180
See Also
Cos() on page 60, Sin() on page 63, Tan() on page 64, ArcSin() on page 59, ArcTan() on page 60
ArcSin()
Returns an angle between -90 and 90 degrees whose sine is equal to the number specified.
Category
Math
Syntax
Result = ArcSin( Number );
Parameter
Number
Any number or numeric attribute with a value between -1 and 1 (inclusive).
Examples
ArcSin(1); ' returns 90
ArcSin(-1); ' returns -90
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See Also
Cos() on page 60, Sin() on page 63, Tan() on page 64, ArcCos() on page 59, ArcTan() on page 60
ArcTan()
Returns an angle between -90 and 90 degrees whose tangent is equal to the number specified.
Category
Math
Syntax
Result = ArcTan( Number );
Parameter
Number
Any number or numeric attribute.
Examples
ArcTan(1); ' returns 45
ArcTan(0); ' returns 0
See Also
Cos() on page 60, Sin() on page 63, Tan() on page 64, ArcCos() on page 59, ArcSin() on page 59
Cos()
Returns the cosine of an angle in degrees.
Category
Math
Syntax
Result = Cos( Number );
Parameter
Number
Any number or numeric attribute.
Examples
Cos(90); ' returns 0
Cos(0); ' returns 1
This example shows how to use the function in a math equation:
Wave = 50 * Cos(6 * Now().Second);
See Also
Sin() on page 63, Tan() on page 64, ArcCos() on page 59, ArcSin() on page 59, ArcTan() on page 60
Exp()
Returns the result of the exponent e raised to a power.
Category
Math
Syntax
Result = Exp( Number );
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Parameter
Number
Any number or numeric attribute.
Example
Exp(1); ' returns 2.718...
Int()
Returns the next integer less than or equal to a specified number.
Category
Math
Syntax
IntegerResult = Int( Number );
Parameter
Number
Any number or numeric attribute.
Remarks
When handling negative real (float) numbers, this function returns the integer farthest from zero.
Examples
Int(4.7); ' returns 4
Int(-4.7); ' returns -5
Log()
Returns the natural log (base e) of a number.
Category
Math
Syntax
RealResult = Log( Number );
Parameter
Number
Any number or numeric attribute.
Remarks
Natural log of 0 is undefined.
Examples
Log(100); ' returns 4.605...
Log(1); ' returns 0
See Also
LogN() on page 62, Log10() on page 61
Log10()
Returns the base 10 log of a number.
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Category
Math
Syntax
Result = Log10( Number );
Parameter
Number
Any number or numeric attribute.
Example
Log10(100); ' returns 2
See Also
Log() on page 61, LogN() on page 62
LogN()
Returns the values of the logarithm of x to base n.
Category
Math
Syntax
Result = LogN( Number, Base );
Parameters
Number
Any number or numeric attribute.
Base
Integer to set log base. You could also specify an integer attribute.
Remarks
Base 1 is undefined.
Examples
LogN(8, 3); ' returns 1.89279
LogN(3, 7); ' returns 0.564
See Also
Log() on page 61, Log10() on page 61
Pi()
Returns the value of Pi.
Category
Math
Syntax
RealResult = Pi();
Example
Pi(); ' returns 3.1415926
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Round()
Rounds a real number to a specified precision and returns the result.
Category
Math
Syntax
RealResult = Round( Number, Precision );
Parameters
Number
Any number or numeric attribute.
Precision
Sets the precision to which the number is rounded. This value can be any number or a numeric
attribute.
Examples
Round(4.3, 1); ' returns 4
Round(4.3, .01); ' returns 4.30
Round(4.5, 1); ' returns 5
Round(-4.5, 1); ' returns -4
Round(106, 5); ' returns 105
Round(43.7, .5); ' returns 43.5
See Also
Trunc() on page 65
Sgn()
Determines the sign of a value (whether it is positive, zero, or negative) and returns the result.
Category
Math
Syntax
IntegerResult = Sgn( Number );
Parameter
Number
Any number or numeric attribute.
Return Value
If the input number is positive, the result is 1. Negative numbers return a -1, and 0 returns a 0.
Examples
Sgn(425); ' returns 1;
Sgn(0); ' returns 0;
Sgn(-37.3); ' returns -1;
Sin()
Returns the sine of an angle in degrees.
Category
Math
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Syntax
Result = Sin( Number );
Parameter
Number
Angle in degrees. Any number or numeric attribute.
Examples
Sin(90); ' returns 1;
Sin(0); ' returns 0;
This example shows how to use the function in a math expression:
wave = 100 * Sin (6 * Now().Second);
See Also
Cos() on page 60, Tan() on page 64, ArcCos() on page 59, ArcSin() on page 59, ArcTan() on page 60
Sqrt()
Returns the square root of a number.
Category
Math
Syntax
RealResult = Sqrt( Number );
Parameter
Number
Any number or numeric attribute.
Example
This example takes the value of me.PV and returns the square root as the value of x:
x=Sqrt(me.PV);
Tan()
Returns the tangent of an angle given in degrees.
Category
Math
Syntax
Result = Tan( Number );
Parameter
Number
The angle in degrees. Any number or numeric attribute.
Examples
Tan(45); ' returns 1;
Tan(0); ' returns 0;
This example shows how to use the function in a math expression:
Wave = 10 + 50 * Tan(6 * Now().Second);
See Also
Cos() on page 60, Sin() on page 63, ArcCos() on page 59, ArcSin() on page 59, ArcTan() on page 60
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Trunc()
Truncates a real (floating point) number by simply eliminating the portion to the right of the decimal point,
including the decimal point, and returns the result.
Category
Math
Syntax
NumericResult = Trunc( Number );
Parameter
Number
Any number or numeric attribute.
Remarks
This function accomplishes the same result as placing the contents of a float type attribute into an integer
type attribute.
Examples
Trunc(4.3); ' returns 4;
Trunc(-4.3); ' returns -4;
See Also
Round() on page 63
Miscellaneous Functions
Functions in the miscellaneous group perform a variety of purposes, such as logging data or querying
attributes.
ActivateApp()
Restores, minimizes, maximizes, or closes another currently running Windows application.
Category
Miscellaneous
Syntax
ActivateApp( TaskName );
Parameter
TaskName
The task this function activates.
Remarks
TaskName is the exact text string, including spaces, that appears on the Task Bar or in Windows Task
Manager. You can see the task name by opening Task Manager.
Example
ActivateApp("Calculator");
Filtering Events
To get only specific events, filters can be introduced before getting events from the event service. The
filtering should be done before the StartRequestingEvent() method is called.
The following datatypes are supported when filtering the events.
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Integer
Float
String
Bool
DateTime
Double
Short
Array
The following table shows the comparison types that are supported for filtering events.
Comparison
Keyword
Description
eq
Means EqualTo. Returns all the events matching the filtered criteria.
beginswith
Means StartsWith. Returns all the events matching the filtered criteria.
Applies only to string data type filtering
lt
Means Lesser Than. Applies to all supported data types excluding string.
It does not support arrays.
le
Means Lesser or Equal. Applies to all supported data types excluding
string. It does not support arrays.
gt
Means Greater Than. Applies to all supported data types excluding
string. It does not support arrays.
ge
Means Greater or Equal. Applies to all supported data types excluding
string. It does not support arrays.
between
Checks will be made only to paired supplied values. Returns all the
events matching the filtered criteria. It supports numeric and date data
types.
neg, nbegins, nlt, nle,
ngt, nge, nbetween
A keyword 'n' before the comparison keyword Means NOT of.
DateTimeGMT()
Returns a number representing the number of days and fractions of days since January 1, 1970, in
Coordinated Universal Time (UTC), regardless of the local time zone.
Category
Miscellaneous
Syntax
Result=DateTimeGMT();
Parameters
None
Example
MessageTag = StringFromTime(DateTimeGMT() * 86400.0, 3);
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IsBad()
Returns a Boolean value indicating if the quality of the specified attribute is Bad.
Category
Miscellaneous
Syntax
BooleanResult = IsBad( Attribute1, Attribute2, … );
Parameter(s)
Attribute1, Attribute2, ...AttributeN
Names of one or more attributes for which you want to determine Bad quality. You can include a
variable-length list of attributes.
Return Value
If any of the specified attributes has Bad quality, then true is returned. Otherwise, false is returned.
Examples
IsBad(TIC101.PV);
IsBad(TIC101.PV, PIC102.PV);
See Also
IsGood() on page 67, IsInitializing() on page 67, IsUncertain() on page 68, IsUsable() on page 68
IsGood()
Returns a Boolean value indicating if the quality of the specified attribute is Good.
Category
Miscellaneous
Syntax
BooleanResult = IsGood( Attribute1, Attribute2, … );
Parameter(s)
Attribute1, Attribute2, and so on
Name of the attribute(s) for which you want to determine Good quality. You can include a
variable-length list of attributes.
Return Value
If all of the specified attributes have Good quality, then true is returned. Otherwise, false is returned.
Examples
IsGood(TIC101.PV);
IsGood(TIC101.PV, PIC102.PV);
See Also
IsBad() on page 67, IsInitializing() on page 67, IsUncertain() on page 68, IsUsable() on page 68
IsInitializing()
Returns a Boolean value indicating if the quality of the specified attribute is Initializing.
Category
Miscellaneous
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Syntax
BooleanResult = IsInitializing( Attribute1, Attribute2, … );
Parameter(s)
Attribute1, Attribute2, and so on
Name of the attribute(s) for which to determine Initializing quality. You can include a variable-length
list of attributes.
Return Value
If any of the specified attributes has Initializing quality, then true is returned. Otherwise, false is returned.
Examples
IsInitializing(TIC101.PV);
IsInitializing(TIC101.PV, PIC102.PV);
See Also
IsBad() on page 67, IsGood() on page 67, IsUncertain() on page 68, IsUsable() on page 68
IsUncertain()
Returns a Boolean value indicating if the quality of the specified attribute is Uncertain.
Category
Miscellaneous
Syntax
BooleanResult = IsUncertain( Attribute1, Attribute2, … );
Parameter(s)
Attribute1, Attribute2, and so on
Name of the attribute(s) to determine Uncertain quality. You can include a variable-length list of
attributes.
Return Value
If all of the specified attributes have Uncertain quality, then true is returned. Otherwise, false is returned.
Examples
IsUncertain(TIC101.PV);
IsUncertain(TIC101.PV, PIC102.PV);
See Also
IsBad() on page 67, IsGood() on page 67, IsInitializing() on page 67, IsUsable() on page 68
IsUsable()
Returns a Boolean value indicating if the specified attribute is usable for calculations.
Category
Miscellaneous
Syntax
BooleanResult = IsUsable( Attribute1, Attribute2, … );
Parameter(s)
Attribute1, Attribute2, ...AttributeN
Name of one or more attributes for which you want to determine unusable quality. You can include a
variable-length list of attributes.
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Return Value
If all of the specified attributes have either Good or Uncertain quality, then true is returned. Otherwise,
false is returned.
Remarks
To qualify as usable, the attribute must have Good or Uncertain quality. In addition, each float or double
attribute cannot be a NaN (not a number).
Examples
IsUsable(TIC101.PV);
IsUsable(TIC101.PV, PIC102.PV);
See Also
IsBad() on page 67, IsGood() on page 67, IsInitializing() on page 67, IsUncertain() on page 68
LogCustom()
Writes a user-defined custom flag message in the Log Viewer.
Category
Miscellaneous
Syntax
LogCustom( CustomFlag, msg );
Parameter
CustomFlag
Creates a new log flag based on the first parameter string. The first call creates the custom flag.
msg
The message to write to the Log Viewer. Actual string or a string attribute.
Remarks
The log flag is disabled by default.
The message is always logged under the component "ObjectName.ScriptName". For example,
"WinPlatform_001.script1: msg", which identifies what object and what script within the object logged the
error.
LogCustom() is similar to LogMessage(), but displays the message in the custom log flag when Log
Custom is enabled.
The parameter help tooltip and Function Browser sample parameter list will show "LogCustom(
CustomFlag, msg )" rather than "LogCustom( CustomFlag, Message )". "Message" is a reserved
keyword.
Example
LogCustom(EditBox1.text, "User-defined message.";
This statement writes to the Log Viewer as follows:
10/24/2005 12:49:14 PM ScriptRuntime
<ObjectName.ScriptName>: <LogFlag EditBox1> User-defined message.
LogDataChangeEvent()
Logs an application change event to the Galaxy Historian.
Note: The LogDataChangeEvent() function works only in object scripts, not in symbol scripts.
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Category
Miscellaneous
Syntax
LogDataChangeEvent(AttributeName, Description, OldValue, NewValue, TimeStamp);
Parameters
AttributeName
Attribute name as a tag name.
Description
Description of the object.
OldValue
Old value of the attribute.
NewValue
New value of the attribute.
TimeStamp
The time stamp associated with the logged event. The timestamp can be UTC or local time. The
TimeStamp parameter is optional. The timestamp of the logged event defaults to Now() if a
TimeStamp parameter is not included.
Remarks
A symbol script still compiles if the LogDataChangeEvent() function is included. However, a warning
message is written to the log at run time that the function is inoperable.
Example
This example logs an event when a pump starts or stops with a timestamp of the current time when the
event occurred.
LogDataChangeEvent(TC104.pumpstate, "Pump04", OldState, NewState);
LogError()
Writes a user-defined error message in the Log Viewer with a red error log flag.
Category
Miscellaneous
Syntax
LogError( msg );
Parameter
msg
The message to write to the Log Viewer. Actual string or a string attribute.
Remarks
The log flag is enabled by default.
The message is always logged under the component "ObjectName.ScriptName". For example,
"WinPlatform_001.script1: msg", which identifies what object and what script within the object logged the
error.
LogError() is similar to LogMessage(), but displays the message in red.
The parameter help tooltip and Function Browser sample parameter list will show "LogError( msg )"
rather than "LogError( Message )". "Message" is a reserved keyword.
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Example
LogError("User-defined error message.");
This statement writes to the Log Viewer as follows:
10/24/2005 12:49:14 PM ScriptRuntime
<ObjectName.ScriptName>: User-defined error message.
LogMessage()
Writes a user-defined message to the Log Viewer.
Category
Miscellaneous
Syntax
LogMessage( msg );
Parameter
msg
The message to write to the Log Viewer. Actual string or a string attribute.
Remarks
This is a very powerful function for troubleshooting scripting. By strategically placing LogMessage()
functions in your scripts, you can determine the order of script execution, performance of scripts, and
identify the value of attributes both before they are changed and after they are affected by the script.
Each message posted to the Log Viewer is stamped with the exact date and time. The message always
begins with the component "Tagname.ScriptName" so you can tell what object and what script within the
object posted the message to the log.
Examples
LogMessage("Report Script is Running");
The above statement writes the following to the Log Viewer:
10/24/2005 12:49:14 PM ScriptRuntime <Tagname.ScriptName>:Report Script is
Running.
MyTag=MyTag + 10;
LogMessage("The Value of MyTag is " + Text(MyTag, "#"));
LogTrace()
Writes a user-defined trace message in the Log Viewer.
Category
Miscellaneous
Syntax
LogTrace( msg );
Parameter
msg
The message to write to the Log Viewer. Actual string or a string attribute.
Remarks
The log flag is disabled by default.
The message is always logged under the component "ObjectName.ScriptName". For example,
"WinPlatform_001.script1: msg", which identifies what object and what script within the object logged the
error.
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LogTrace() is similar to LogMessage(), but displays the message as Trace when Log Trace is enabled.
The parameter help tooltip and Function Browser sample parameter list will show "LogTrace( msg )"
rather than "LogTrace( Message )". "Message" is a reserved keyword.
Example
LogTrace("User-defined trace message.");
This statement writes to the Log Viewer as follows:
10/24/2005 12:49:14 PM ScriptRuntime
<ObjectName.ScriptName>: User-defined trace message.
LogWarning()
Writes a user-defined error message in the Log Viewer with a yellow warning log flag.
Category
Miscellaneous
Syntax
LogWarning( msg );
Parameter
msg
The message to write to the Log Viewer. Actual string or a string attribute.
Remarks
The log flag is disabled by default.
The message is always logged under the component "ObjectName.ScriptName". For example,
"WinPlatform_001.script1: msg", which identifies what object and what script within the object logged the
error.
LogWarning() is similar to LogMessage(), but displays the message as a yellow warning message.
The parameter help tooltip and Function Browser sample parameter list will show "LogWarning( msg )"
rather than "LogWarning( Message )". "Message" is a reserved keyword.
Example
LogWarning("User-defined warning message.")
This statement writes to the Log Viewer as follows:
10/24/2005 12:49:14 PM ScriptRuntime
<ObjectName.ScriptName>: User-defined warning message.
SendKeys()
Sends keystrokes to an application. To the receiving application, the keys appear to be entered from the
keyboard. You can use SendKeys() within a script to enter data or send commands to an application.
Most keyboard keys can be used in a SendKeys() statement. Each key is represented by one or more
characters, such as A for the letter A or {ENTER} for the Enter key.
Category
Miscellaneous
Syntax
SendKeys( KeySequence );
Parameter
KeySequence
Any key sequence or a string attribute.
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Remarks
To specify more than one key, concatenate the codes for each character. For example, to specify the
dollar sign ($) key followed by a (b), enter $b.
The following lists the valid send key codes for unique keyboard keys:
Key
Code
BACKSPACE
{BACKSPACE}or {BS}
BREAK
{BREAK}
CAPSLOCK
{CAPSLOCK}
DELETE
{DELETE} or {DEL}
DOWN
{DOWN}
END
{END}
ENTER
{ENTER} or tilde (~ )
ESCAPE
{ESCAPE} or {ESC}
F1...F12
{F1}...{F12}
HOME
{HOME}
INSERT
{INSERT}
LEFT
{LEFT}
NUMLOCK
{NUMLOCK}
PAGE DOWN
{PGDN}
PAGE UP
{PGUP}
PRTSC
{PRTSC}
RIGHT
{RIGHT}
TAB
{TAB}
UP
{UP}
HOME
{HOME}
Special keys (SHIFT, CTRL, and ALT) have their own key codes:
Key
Code
SHIFT
+ (plus)
CTRL
^ (caret)
ALT
% (percent)
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Enhancements to the Microsoft Hardware Abstraction Layer in Windows prevents the SendKeys()
function from operating on some computers.
Examples
To use two special keys together, use a second set of parentheses. The following statement holds down
the CTRL key while pressing the ALT key, followed by p:
SendKeys ("^(%(p))");
Commands can be preceded by the ActivateApp() command to direct the keystrokes to the proper
application.
The following statement gives the computer focus to Calculator and sends the key combination 1234:
ActivateApp("Calculator");
SendKeys("^(1234)");
SetAttributeVT()
Sets the value and timestamp of an object attribute. For buffered values, only the last calculated value is
captured for historization.
Category
Miscellaneous
Syntax
SetAttributeVT( Attribute, Value, TimeStamp);
Parameter
Attribute
Name of the object attribute whose value and timestamp are modified. The specified attribute must
belong to the object to which the script is attached.
Value
Value of the attribute, which can be a reference. The quality is always set to Good.
TimeStamp
Timestamp that can be a reference, a variable, or a string interpreted as the computer’s local time or
UTC. The timestamp is converted internally to UTC format before the attribute’s value is sent to the
run-time component.
Remarks
Interim calculated buffered values are NOT historized. Use SetAttributeVT2() if historization of interim
values is needed.
Timestamp can be set only for object attributes that support a timestamp. At compile time, the script
cannot detect whether the attribute specified with the SetAttributeVT() function supports a timestamp or
not. No warning is issued if the attribute does not support a timestamp.
Example
This example sets an integer value and timestamp for an attribute that indicates pump RPM.
SetAttributeVT(me.PV, TC104.PumpRPM, LCLTIME);
SetAttributeVT2()
Sets the value and timestamp of an object attribute. This function is identical to SetAttributeVT(), but
SetAttributeVT2() allows interim calculated data for buffered values to be historized once per scan cycle.
Category
Miscellaneous
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Syntax
SetAttributeVT2( Attribute, Value, TimeStamp);
Parameter
Attribute
Name of the object attribute whose value and timestamp are modified. The specified attribute must
belong to the object to which the script is attached.
Value
Value of the attribute, which can be a reference. The quality is always set to Good.
TimeStamp
Timestamp that can be a reference, a variable, or a string interpreted as the computer’s local time or
UTC. The timestamp is converted internally to UTC format before the attribute’s value is sent to the
run-time component.
Remarks
In contrast to SetAttributeVT(), SetAttributeVT2() allows historization of interim calculated buffered
values.
Timestamp can be set only for object attributes that support a timestamp. At compile time, the script
cannot detect whether the attribute specified with the SetAttributeVT2() function supports a timestamp or
not. No warning is issued if the attribute does not support a timestamp.
Example
This example sets an integer value and timestamp for an attribute that indicates pump RPM (interim
calculated values for buffered data are historized).
SetAttributeVT2(me.PV, TC104.PumpRPM, LCLTIME);
SetBad()
Sets the quality of an attribute to Bad.
Category
Miscellaneous
Syntax
SetBad( Attribute );
Parameter
Attribute
The attribute for which you want to set the quality to Bad.
Remarks
The specified attribute must be within the object to which the script is attached.
Example
SetBad(me.PV);
See Also
SetGood() on page 75, SetInitializing() on page 76, SetUncertain() on page 76
SetGood()
Sets the quality of an attribute to Good.
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Category
Miscellaneous
Syntax
SetGood( Attribute );
Parameter
Attribute
The attribute for which you want to set the quality to Good.
Remarks
The specified attribute must be within the object to which the script is attached.
Example
SetGood(me.PV);
See Also
SetBad() on page 75, SetInitializing() on page 76, SetUncertain() on page 76
SetInitializing()
Sets the quality of an attribute to Initializing.
Category
Miscellaneous
Syntax
SetInitializing( Attribute );
Parameter
Attribute
The attribute for which you want to set the quality to Initializing.
Remarks
The specified attribute must be within the object to which the script is attached.
Example
SetInitializing(me.PV);
See Also
SetBad() on page 75, SetGood() on page 75, SetUncertain() on page 76
SetUncertain()
Sets the quality of an attribute to Uncertain.
Category
Miscellaneous
Syntax
SetUncertain( Attribute );
Parameter
Attribute
The attribute for which you want to set the quality to Uncertain.
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Remarks
The specified attribute must be within the object to which the script is attached.
Example
SetUncertain(me.PV);
See Also
SetBad() on page 75, SetGood() on page 75, SetInitializing() on page 76
SignedAlarmAck()
Acknowledges one or more alarms on tags or attributes, optionally requiring a signature if any of the
indicated alarms falls within a designated priority range.
This function is supported only for client scripting and not object scripting.
Category
Miscellaneous
Syntax
int SignedAlarmAck(String Alarm_List,
Boolean Signature_Reqd_for_Range,
Integer Min_Priority,
Integer Max_Priority,
String Default_Ack_Comment,
Boolean Ack_Comment_Is_Editable,
String TitleBar_Caption,
String Message_Caption
);
Parameters
Alarm_List
The list of alarms to be acknowledged. The list must be a single text string with each alarm name
separated by a space or a comma.
Data Type
String
Valid Range
Limit 1024 characters
Additional Information
Can be a constant string, a reference, or an expression.
Only alarms on tags or attributes are supported.
If there is any invalid alarm in the list, then none of the alarms are acknowledged.
Examples
Example 1:
"UD1.analog_001.HiHi"
The collection is represented as a text string, with alarms separated by blanks and/or commas.
Example 2:
"UD1.analog_001.HiHi UD9.x14.dev.major"
Example 3:
"UD1.analog_001.HiHi, UD9.x14.dev.major"
Example 4, an array of strings such as:
Pump1.AlarmArray[1] = "Pump1.Level.HiHi"
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Pump1.AlarmArray[2] = "Pump1.Level.LoLo"
uses the function as follows:
SignedAlarmAck(Pump1.AlarmArray[ ], ...)
The script passes to the function the following single string:
"Pump1.Level.HiHi, Pump1.Level.LoLo"
Signature_Reqd_for_Range
Indicates whether a signature is required for acknowledging alarms.
Data Type
Bool
Additional Information
Can be a constant, a reference, or an expression.
Min_Priority
Represents the minimum priority value of the range for which the signature is required.
Data Type
Integer
Valid Range
1-999; must be less than or equal to the Max_Priority value.
Additional Information
Can be a constant, a reference, or an expression.
Max_Priority
Represents the maximum priority value of the range for which the signature is required.
Data Type
Integer
Valid Range
1-999; must be greater than or equal to the Min_Priority value.
Additional Information
Can be a constant, a reference, or an expression.
Default_Ack_Comment
Comment to be shown in the Acknowledge Alarms dialog box.
Data Type
String
Valid Range
Limit 200 characters
Additional Information
Can be a constant, a reference or an expression.
If the parameter is empty, then no default comment is shown in the Acknowledge Alarms dialog
box.
Ack_Comment_Is_ Editable
Indicates whether the run-time user can modify the acknowledgement comment.
Data Type
Bool
Additional Information
Can be a constant, a reference, or an expression.
If set to False, the Comment box in the Acknowledge Alarms dialog box is unavailable.
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TitleBar_Caption
Shows a title in the title bar of the Acknowledge Alarms dialog box.
Data Type
String
Valid Range
Limi 1024 characters
Additional Information
Can be a constant, a reference, or an expression.
If the TitleBar_Caption is empty, the default title, Acknowledge Alarms, is shown.
Message_Caption
Shows a customizable message to the run-time user in the Acknowledge Alarms dialog box.
Data Type
String
Valid Range
Limit 250 characters
Additional Information
Can be a constant, a reference, or an expression.
Use the parameter to provide more information on the alarm to the run-time user.
This message is not propagated to the event record.
Return Values
Return values indicate success or failure status. A non-zero value indicates type of failure.
-1
The user canceled the operation.
The function writes a message to the Logger indicating user
cancellation.
-2
No alarms are waiting for acknowledgement.
0
The function is successful and the following are all true:
The function parameters are valid.
The user credentials are valid (or no credentials are
needed).
The user did not cancel the operation.
Function wrote to the .AckMsg attributes of the indicated
alarms.
1
The function failed due to any error that is not covered by the
other specified return values.
2
One or more parameters were not coerced to the appropriate
data type at run time.
Example: Parameter is a reference with Boolean as the
expected data type. At run time, reference is to a String data type
that cannot be coerced to True or False.
The function writes a message to the Logger.
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3
The Alarm_List parameter was not valid at run time.
String was null, empty or contained no attribute references.
Contained one or more items that were not valid attribute
references.
Contained one or more attribute references that did not exist
or did not identify valid alarm primitives.
If Alarm_List contains a mixture of valid and invalid references,
the function does nothing. The function does not attempt to
operate on the valid references, and returns this error status.
4
The Min_Priority or MaxPriority values do not fall within the
range of 1 to 999.
The function writes a message to the Logger indicating which
parameter was out of range and showing the actual value.
5
The Min_Priority value is greater than the Max_Priority value.
The function writes a message to the Logger identifying the
problem and showing the actual values.
Note: A return value of zero does not indicate if the alarms are acknowledged, only that the function
wrote to the AckMsg attributes. The alarms may not be acknowledged due to insufficient permission or if
the alarms have already been acknowledged.
Remarks
For more information about using the SignedAlarmAck() function, see the topic Signature Security for
Acknowledging Alarms, under "Adding and Maintaining Symbol Scripts" in the Creating and Managing
Industrial Graphics User Guide.
Examples
Dim n as Integer;
n = SignedAlarmAck("UD1.analog_001.HiHi UD9.x14.dev.major", true, 1, 250,
"Acknowledged by script", true, "Acking Tank Alarms", "Acknowledge the tank
alarms");
Using an array of strings:
dim arr[2] as String;
arr[1] = "UD1.analog_001.HiHi";
arr[2] = "UD9.x14.dev.major";
n = SignedAlarmAck(arr[], true, 200, 500, "Acked by script", true, "Acking
Tank Alarms", "Please acknowledge the tank alarms.");
SignedWrite()
Performs a write to an AutomationObject attribute that has a Secured Write or Verified Write security
classification.
Category
Miscellaneous
Syntax
int SignedWrite(string Attribute,
object Value,
string ReasonDescription,
Bool Comment_Is_Editable,
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Enum Comment_Enforcement,
string[] Predefined_Comment_List
);
Brackets [ ] indicate an array.
Parameters
Attribute
The attribute to be updated.
Data Type
String
Additional Information
Can be a constant string, a reference, or an expression.
Supports bound and nested bound references.
For detailed examples of Attribute parameter uses, see the topic Examples of Using the Attribute
Parameter in the SignedWrite() Function under "Managing Symbols" in the Creating and Managing
Industrial Graphics User Guide.
Examples
Example 1:
"UserDefined_001.temp"
Example 2:
"Pump15" + ".valve4"
Example 3:
With UDO_7 containing two string attributes, namestrA and namestrB set to the values "Tank1" and
"Tank5" respectively, the following script writes to Tank1.Level or Tank5.Level according to whether
strselect is "A" or "B":
Dim strselect As String;
Dim x As Indirect;
{ logic to set strselect to "A" or "B" }
x.BindTo ("UDO_7.namestr" + strselect);
SignedWrite(x + ".Level", 243, "Set " + x + " Level", true, 0, null);
Value
The value to be written.
Data Type
Object
Valid Range
Must match data type of the attribute being updated.
Additional Information
Can be a constant value, a reference, an expression, or NULL if nothing is to be entered.
ReasonDescription
Text that explains the purpose of the target attribute and the impact of changing it.
Data Type
String
Valid Range
Maximum of 256 characters.
Additional Information
Can be a constant string, a reference, or an expression.
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The ReasonDescription is passed to the indicated Attribute as part of the write operation. The object
also includes the user’s write comment, if any. A Field Attribute description is used for the
ReasonDescription parameter only if the attribute is a Field Attribute and it has a description (is not
null). Otherwise, the Short Description for the corresponding ApplicationObject is used for the
ReasonDescription parameter.
Comment_is _Editable
Indicates whether user can edit the write comment.
Data Type
Bool
Additional Information
Can be a constant value, a reference, or an expression.
If set to True: The comment text box is enabled with exceptions. If Comment_Is_Editable is true and
if the Comment_ Enforcement parameter is PredefinedOnly, the comment text box is disabled. At run
time, the user can only select a comment from the predefined comment list.
If the Comment_ Enforcement parameter is not PredefinedOnly, the comment list and box are
enabled. You can select a comment from the comment list and modify it in the comment box.
If the predefined list is empty, the comment list is not shown in the dialog box.
If set to False: The predefined comment list does not appear in the Secured Write or Verified Write
dialog boxes. The editable comment text box is disabled.
Comment_Enforcement
Contains choices of Optional, Mandatory and PredefinedOnly.
Data Type
Enum
Enumerations
Optional = 0
The run-time user can enter a comment or leave it blank.
Mandatory = 1
The run-time user must add a comment, either by selecting from the comment list or by entering a
comment in the comment box.
PredefinedOnly = 2
The run-time user can select a comment from the comment list only. The comment text box is
disabled.
Additional Information
Can be a constant, a reference, or an expression.
Predefined_Comment_List
An array of strings that can be used as predefined comments.
Data Type
String[]
Valid Range
Maximum of 20 comments, each with a maximum of 200 characters.
Additional Information
The array can be empty (number of elements is 0).
Can be a constant, a reference, an expression, or NULL if empty. Can reference an attribute that
contains an array of strings.
If no predefined comment is entered, the predefined comment list is disabled at run time.
If Comment_Is_Editable is False, the predefined comment is still placed in the editable comment text
box, but the user cannot modify it at run time.
Return Values
Return values indicate success or failure status. A non-zero value indicates type of failure.
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0
The function returns a value of 0 (meaning success) if the
following are all true:
The function parameters were valid.
The write operation was successfully placed on the queue
for Secured and Verified Writes.
If the user cancels the operation, a message is written to the
Logger indicating user cancellation.
1
The function failed due to any error that is not covered by the
other specified return values. This includes any error that is not
covered by the other specified return values. If there is a failure,
a specific message is logged in the Logger.
2
One or more parameters were not coerced to the appropriate
data type at run time.
Example: Parameter is a reference with Boolean as the
expected data type. At run time, reference is to a String data type
that cannot be coerced to True or False. The function returns this
value and writes a message to the Logger.
3
The attribute parameter was not valid at run time.
Attribute string was null, empty, or contained no attribute
reference.
Attribute string contained an item that was not a valid
attribute reference.
Attribute string contained an attribute reference that did not
exist.
Attribute string contained an attribute reference that was not
of the Secured Write or Verified Write security classification.
The function writes a message to the Logger identifying the error
and the invalid attribute string.
4
The Comment_Enforcement parameter value was out of the
range of valid enumerators.
Remarks
The SignedWrite() function is supported only for client scripting and not for object scripting.
A return value of 0 does not indicate whether the attribute was updated, only that the function placed an
entry on the queue to write to the attribute. The operator may decide to cancel the operation after the
Secured Write or Verified write dialog box is presented. In this case the attribute is not updated and a
message is placed in the Logger indicating that the user canceled the operation. Even if the user enters
valid credentials and clicks OK, the attribute still might not have been updated because of inadequate
permission or data coercion problems.
The SignedWrite() function supports the custom property passed as the first parameter with opened and
closed quotation marks, "".
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If you configure the custom property CP as shown in the following script, the function attempts to resolve
CP and determine if it has a reference. If it has a reference, then the reference is retrieved and the write
is performed on the reference.
SignedWrite("CP", value, reason, editable, enforcement, null);
For more information about using the SignedWrite() function, see the topic Working with the
SignedWrite() Function for Secured and Verified Writes under "Managing Symbols" in the Creating and
Managing Industrial Graphics User Guide.
Examples
SignedWrite ("UserDefined_001.temp", 185, "This will change the oven
temperature", true, 1, null);
The following example shows the user an array of predefined comments:
Dim n as Integer;
n = SignedWrite("UserDefined_001.temp", 185, "This will change the oven
temperature", true, 1, UserDefined_001.OvenCommentArray[ ]);
where UserDefined_001.OvenCommentArray is an attribute containing an array of strings.
WriteStatus()
Returns the enumerated write status of the last write to the specified attribute.
Category
Miscellaneous
Syntax
Result = WriteStatus( Attribute );
Parameter
Attribute
The attribute for which you want to return write status.
Return Value
The return statuses are:
MxStatusOk
MxStatusPending
MxStatusWarning
MxStatusCommunicationError
MxStatusConfigurationError
MxStatusOperationalError
MxStatusSecurityError
MxStatusSoftwareError
MxStatusOtherError
Remarks
If the attribute has never been written to, this function returns MxStatusOk. This function always returns
MxStatusOk for attributes that do not support a calculated (non-Good) quality.
Example
WriteStatus(TIC101.SP);
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WWControl()
Restores, minimizes, maximizes, or closes an application.
Category
Miscellaneous
Syntax
WWControl( AppTitle, ControlType );
Parameters
AppTitle
The name of the application title to be controlled. Actual string or a string attribute.
ControlType
Determines how the application is controlled. Possible values are shown below. These actions are
identical to clicking on their corresponding selections in the application's Control Menu. Actual string
or a string attribute.
"Restore" = Activates and shows the application's window.
"Minimize" = Activates a window and shows it as an icon.
"Maximize" = Activates and shows the application's window.
"Close" = Closes an application.
Example
WWControl("Calculator","Restore");
See Also
ActivateApp() on page 65
String Functions
Use string functions to work with character strings and string values.
DText()
Returns one of two possible strings, depending on the value of the Discrete parameter.
Category
String
Syntax
StringResult = DText( Discrete, OnMsg, OffMsg );
Parameters
Discrete
A Boolean value or Boolean attribute.
OnMsg
The message that is shown when the value of Discrete equals true.
OffMsg
The message shown when Discrete equals false.
Example
StringResult = DText(me.temp > 150, "Too hot", "Just right");
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StringASCII()
Returns the ASCII value of the first character in a specified string.
Category
String
Syntax
IntegerResult = StringASCII( Char );
Parameter
Char
Alphanumeric character or string or string attribute.
Remarks
When this function is processed, only the single character is tested or affected. If the string provided to
StringASCII contains more than one character, only the first character of the string is tested.
Examples
StringASCII("A"); ' returns 65;
StringASCII("A Mixer is Running"); ' returns 65;
StringASCII("a mixer is running"); ' returns 97;
See Also
StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on page 89, StringFromTime()
on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen() on page 93, StringLower()
on page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page 95,
StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringChar()
Returns the character corresponding to a specified ASCII code.
Category
String
Syntax
StringResult = StringChar( ASCII );
Parameter
ASCII
ASCII code or an integer attribute.
Remarks
Use the StringChar function to add ASCII characters not normally represented on the keyboard to a
string attribute.
This function is also useful for SQL commands. The where expression sometimes requires double
quotation marks around string values, so use StringChar(34).
Example
In this example, a [Carriage Return (13)] and [Line Feed (10)] are added to the end of StringAttribute and
passed to ControlString. Inserting characters out of the normal 32-126 range of displayable ASCII
characters can be very useful for creating control codes for external devices such as printers or modems.
ControlString = StringAttribute+StringChar(13)+StringChar(10);
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StringCompare()
Compares a string value with another string.
Category
String
Syntax
StringCompare( Text1, Text2 );
Parameters
Text1
First string in the comparison.
Text2
Second string in the comparison.
Return Value
The return value is zero if the strings are identical, -1 if Text1’s value is less than Text2, or 1 if Text1’s
value is greater than Text2.
Example
Result = StringCompare ("Text1","Text2"); (or)
Result = StringCompare (MText1,MText2);
Where Result is an Integer or Real tag and MText1 and MText2 are Memory Message
tags.
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringFromTimeLocal() on page 91, StringInString() on page 92,
StringLeft() on page 92, StringLen() on page 93, StringLower() on page 93, StringMid() on page 94,
StringReplace() on page 94, StringRight() on page 95, StringSpace() on page 96, StringTest() on page
97, StringToIntg() on page 97, StringToReal() on page 98, StringTrim() on page 99, StringUpper() on
page 99, Text() on page 100
StringCompareNoCase()
Compares a string value with another string and ignores the case.
Category
String
Syntax
SStringCompareNoCase( Text1, Text2 );
Parameters
Text1
First string in the comparison.
Text2
Second string in the comparison.
Return Value
The return value is zero if the strings are identical (ignoring case), -1 if Text1’s value is less than Text2
(ignoring case), or 1 if Text1’s value is greater than Text2 (ignoring case).
Example
Result = StringCompareNoCase ("Text1","TEXT1"); (or)
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Result = StringCompareNoCase (MText1,MText2);
Where Result is an Integer or Real tag and MText1 and MText2 are Memory Message
tags.
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringFromTimeLocal() on page 91, StringInString() on page 92,
StringLeft() on page 92, StringLen() on page 93, StringLower() on page 93, StringMid() on page 94,
StringReplace() on page 94, StringRight() on page 95, StringSpace() on page 96, StringTest() on page
97, StringToIntg() on page 97, StringToReal() on page 98, StringTrim() on page 99, StringUpper() on
page 99, Text() on page 100
StringFromGMTTimeToLocal()
Converts a time value (in seconds since Jan-01-1970) to a particular string representation. This is the
same as StringFromTime().
Category
String
Syntax
MessageResult=StringFromGMTTimeToLocal(SecsSince1-1-70,StringType);
Parameters
SecsSince1-1-70
Is converted to the StringType specified and the result is stored in MessageResult.
StringType
Determines the display method:
1 = Displays the date in the same format set from the windows control Panel. (Similar to that
displayed for $DateString.)
2 = Displays the time in the same format set from the Windows control Panel. (Similar to that
displayed for $TimeString.)
3 = Displays a 24-character string indicating both the date and time: "Wed Jan 02 02:03:55 1993"
4 = Displays the short form for the day of the week: "Wed"
5 = Displays the long form for the day of the week: "Wednesday"
Remarks
Any adjustments necessary due to Daylight Savings Time are automatically applied to the return result.
Therefore, it is not necessary to make any manual adjustments to the input value to convert to DST.
Example
This example assumes that the time zone on the local node is Pacific Standard Time (UTC-0800). The
UTC time passed to the function is 12:00:00 AM on Friday, 1/2/1970. Since PST is 8 hours behind UTC,
the function will return the following results:
StringFromGMTTimeToLocal(86400, 1); ' returns "1/1/1970"
StringFromGMTTimeToLocal(86400, 2); ' returns "04:00:00 PM"
StringFromGMTTimeToLocal(86400, 3); ' returns "Thu Jan 01 16:00:00 1970"
StringFromGMTTimeToLocal(86400, 4); ' returns "Thu"
StringFromGMTTimeToLocal(86400, 5); ' returns "Thursday"
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See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringFromTimeLocal() on page 91, StringInString() on page 92,
StringLeft() on page 92, StringLen() on page 93, StringLower() on page 93, StringMid() on page 94,
StringReplace() on page 94, StringRight() on page 95, StringSpace() on page 96, StringTest() on page
97, StringToIntg() on page 97, StringToReal() on page 98, StringTrim() on page 99, StringUpper() on
page 99, Text() on page 100
StringFromIntg()
Converts an integer value into its string representation in another base and returns the result.
Category
String
Syntax
SringResult = StringFromIntg( Number, numberBase );
Parameters
Number
Number to convert. Any number or an integer attribute.
numberBase
Base to use in conversion. Any number or an integer attribute.
Examples
StringFromIntg(26, 2); ' returns "11010"
StringFromIntg(26, 8); ' returns "32"
StringFromIntg(26, 16); ' returns "1A"
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromReal() on page 89, StringFromTime() on
page 90, StringInString() on page 92, StringLeft() on page 92, StringLen() on page 93, StringLower() on
page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page 95, StringSpace()
on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page 98, StringTrim()
on page 99, StringUpper() on page 99, Text() on page 100
StringFromReal()
Converts a real value into its string representation, either as a floating-point number or in exponential
notation, and returns the result.
Category
String
Syntax
StringResult = StringFromReal( Number, Precision, Type );
Parameters
Number
Converted to the Precision and Type specified. Any number or a float attribute.
Precision
Specifies how many decimal places is shown. Any number or an integer attribute.
Type
A string value that determines the display method. Possible values are:
f = Display in floating-point notation.
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e = Display in exponential notation with a lowercase "e."
E = Display in exponential notation with an uppercase "E" followed by a plus sign and at least three
exponential digits.
Examples
StringFromReal(263.355, 2,"f"); ' returns "263.36";
StringFromReal(263.355, 2,"e"); ' returns "2.63e2";
StringFromReal(263.355, 2,"E"); ' returns "2.63 E+002";
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromTime() on
page 90, StringInString() on page 92, StringLeft() on page 92, StringLen() on page 93, StringLower() on
page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page 95, StringSpace()
on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page 98, StringTrim()
on page 99, StringUpper() on page 99, Text() on page 100
StringFromTime()
Converts a time value (in seconds since January 1, 1970) into a particular string representation and
returns the result.
Category
String
Syntax
StringResult = StringFromTime( SecsSince1-1-70, StringType );
Parameters
SecsSince1-1-70
Converted to the StringType specified.
StringType
Determines the display method. Possible values are:
1 = Shows the date in the same format set from the Windows Control Panel.
2 = Shows the time in the same format set from the Windows Control Panel.
3 = Shows a 24-character string indicating both the date and time: "Wed Jan 02 02:03:55 1993"
4 = Shows the short form for a day of the week: "Wed"
5 = Shows the long form for a day of the week: "Wednesday"
Remarks
The time value is UTC equivalent: number of elapsed seconds since January 1, 1970 GMT. The value
returned reflects the local time.
Examples
StringFromTime(86400, 1); ' returns "1/2/1970"
StringFromTime(86400, 2); ' returns "12:00:00 AM"
StringFromTime(86400, 3); ' returns "Fri Jan 02 00:00:00 1970"
StringFromTime(86400, 4); ' returns "Fri"
StringFromTime(86400, 5); ' returns "Friday"
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See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97,
StringToReal() on page 98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringFromTimeLocal()
Converts a time value (in seconds since Jan-01-1970) into a particular string representation. The value
returned also represents local time.
Category
String
Syntax
MessageResult=StringFromTimeLocal(SecsSince1-1-70,
StringType);
Parameters
SecsSince1-1-70
Is converted to the StringType specified and the result is stored in MessageResult.
StringType
Determines the display method:
1 = Displays the date in the same format set from the windows control Panel. (Similar to that
displayed for $DateString.)
2 = Displays the time in the same format set from the Windows control Panel. (Similar to that
displayed for $TimeString.)
3 = Displays a 24-character string indicating both the date and time: "Wed Jan 02 02:03:55 1993"
4 = Displays the short form for the day of the week: "Wed"
5 = Displays the long form for the day of the week: "Wednesday"
Remarks
Any adjustments necessary due to Daylight Savings Time will automatically be applied to the return
result. Therefore, it is not necessary to make any manual adjustments for DST to the input value.
Example
StringFromTimeLocal (86400, 1); ' returns "1/2/1970"
StringFromTimeLocal (86400, 2); ' returns "12:00:00 AM"
StringFromTimeLocal (86400, 3); ' returns "Fri Jan 02 00:00:00 1970"
StringFromTimeLocal (86400, 4); ' returns "Fri"
StringFromTimeLocal (86400, 5); ' returns "Friday"
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97,
StringToReal() on page 98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
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StringInString()
Returns the position in a string of text where a specified string first occurs.
Category
String
Syntax
IntegerResult = StringInString( Text, SearchFor, StartPos, CaseSens );
Parameters
Text
The string that is searched. Actual string or a string attribute.
SearchFor
The string to be searched for. Actual string or a string attribute.
StartPos
Determines the position in the text where the search begins. Any number or an integer attribute.
CaseSens
Determines whether the search is case-sensitive.
0 = Not case-sensitive
1 = Case-sensitive
Any number or an integer attribute.
Remarks
If multiple occurrences of SearchFor are found, the location of the first is returned.
Examples
StringInString("The mixer is running", "mix", 1, 0) ' returns 5;
StringInString("Today is Thursday", "day", 1, 0) ' returns 3;
StringInString("Today is Thursday", "day", 10, 0) ' returns 15;
StringInString("Today is Veteran's Day", "Day", 1, 1) ' returns 20;
StringInString("Today is Veteran's Day", "Night", 1, 1) ' returns 0;
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringLeft() on page 92, StringLen() on page 93, StringLower()
on page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page 95,
StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringLeft()
Returns a specified number of characters in a string value, starting with the leftmost string character.
Category
String
Syntax
StringResult = StringLeft( Text, Chars );
Parameters
Text
Actual string or a string attribute.
Chars
Number of characters to return or an integer attribute.
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Remarks
If Chars is set to 0, the entire string is returned.
Examples
StringLeft("The Control Pump is On", 3) ' returns "The";
StringLeft("Pump 01 is On", 4) ' returns "Pump";
StringLeft("Pump 01 is On", 96) ' returns "Pump 01 is On";
StringLeft("The Control Pump is On", 0) ' returns "The Control Pump is On";
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLen() on page 93,
StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page
95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on
page 98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringLen()
Returns the number of characters in a string.
Category
String
Syntax
IntegerResult = StringLen( Text );
Parameter
Text
Actual string or a string attribute.
Remarks
All the characters in the string attribute are counted, including blank spaces and those not normally
shown on the screen.
Examples
StringLen("Twelve percent") ' returns 14;
StringLen("12%") ' returns 3;
StringLen("The end." + StringChar(13)) ' returns 9;
The carriage return character is ASCII 13.
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92,
StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page
95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on
page 98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringLower()
Converts all uppercase characters in text string to lowercase and returns the result.
Category
String
Syntax
StringResult = StringLower( Text );
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Parameter
Text
String to be converted to lowercase. Actual string or a string attribute.
Remarks
Lowercase characters, symbols, numbers, and other special characters are not affected.
Examples
StringLower("TURBINE") ' returns "turbine";
StringLower("22.2 Is The Value") ' returns "22.2 is the value";
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringMid() on page 94, StringReplace() on page 94, StringRight() on page 95,
StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringMid()
Extracts a specific number of characters from a starting point within a string and returns the extracted
character string as the result.
Category
String
Syntax
StringResult = StringMid( Text, StartChar, Chars );
Parameters
Text
Actual string or a string attribute to extract a range of characters.
StartChar
The position of the first character within the string to extract. Any number or an integer attribute.
Chars
The number of characters within the string to return. Any number or an integer attribute.
Remarks
This function is slightly different than the StringLeft() on page 92 function and StringRight() on page 95
function in that it allows you to specify both the start and end of the string that is to be extracted.
Examples
StringMid("The Furnace is Overheating",5,7); ' returns "Furnace";
StringMid("The Furnace is Overheating",13,3); ' returns "is ";
StringMid("The Furnace is Overheating",16,50); ' returns "Overheating"
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringReplace() on page 94, StringRight() on page 95,
StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringReplace()
Replaces or changes specific parts of a provided string and returns the result.
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Category
String
Syntax
StringResult = StringReplace( Text, SearchFor, ReplaceWith, CaseSens,
NumToReplace, MatchWholeWords );
Parameters
Text
The string in which characters, words, or phrases will be replaced. Actual string or a string attribute.
SearchFor
The string to search for and replace. Actual string or a string attribute.
ReplaceWith
The replacement string. Actual string or a string attribute.
CaseSens
Determines whether the search is case-sensitive. (0=no and 1=yes) Any number or an integer
attribute.
NumToReplace
Determines the number of occurrences to replace. Any number or an integer attribute. To indicate all
occurrences, set this value to -1.
MatchWholeWords
Determines whether the function limits its replacement to whole words. (0=no and 1=yes) Any
number or an integer attribute. If MatchWholeWords is turned on (set to 1) and the SearchFor is set
to "and", the "and" in "handle" are not replaced. If the MatchWholeWords is turned off (set to 0), it is
replaced.
Remarks
Use this function to replace characters, words, or phrases within a string.
The StringReplace() on page 94 function does not recognize special characters, such as @ # $ % & * ( ).
It reads them as delimiters. For example, if the function StringReplace() on page 94
(abc#,abc#,1234,0,1,1) is processed, there is no replacement. The # sign is read as a delimiter instead
of a character.
Examples
StringReplace("In From Within","In","Out",0,1,0) ' returns "Out From Within"
(replaces only the first one);
StringReplace("In From Within","In","Out",0,-1,0) ' returns "Out From without"
(replaces all occurrences);
StringReplace("In From Within","In","Out",1,-1,0) ' returns "Out From Within"
(replaces all that match case);
StringReplace("In From Within","In","Out",0,-1,1) ' returns "Out From Within"
(replaces all that are whole words);
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringRight() on page 95, StringSpace()
on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page 98, StringTrim()
on page 99, StringUpper() on page 99, Text() on page 100
StringRight()
Returns the specified number of characters starting at the right-most character of text.
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Category
String
Syntax
StringResult = StringRight( Text, Chars );
Parameters
Text
Actual string or a string attribute.
Chars
The number of characters to return or an integer attribute.
Remarks
If Chars is set to 0, the entire string is returned.
Examples
StringRight("The Pump is On", 2) ' returns "On";
StringRight("The Pump is On", 5) ' returns "is On";
StringRight("The Pump is On", 87) ' returns "The Pump is On";
StringRight("The Pump is On", 0) ' returns "The Pump is On";
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringSpace()
Generates a string of spaces either within a string attribute or within an expression and returns the result.
Category
String
Syntax
StringResult = StringSpace( NumSpaces );
Parameter
NumSpaces
Number of spaces to return. Any number or an integer attribute.
Examples
All spaces are represented by the "×" character:
StringSpace(4) ' returns "××××";
"Pump" + StringSpace(1) + "Station" ' returns "Pump×Station";
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringTest() on page 97, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
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StringTest()
Tests the first character of text to determine whether it is of a certain type and returns the result.
Category
String
Syntax
DiscreteResult = StringTest( Text, TestType );
Parameters
Text
String that function acts on. Actual string or a string attribute.
TestType
Determines the type of test. Possible values are:
1 = Alphanumeric character ('A-Z', 'a-z' and '0-9')
2 = Numeric character ('0- 9')
3 = Alphabetic character ('A-Z' and 'a-z')
4 = Uppercase character ('A-Z')
5 = Lowercase character ('a'-'z')
6 = Punctuation character (0x21-0x2F)
7 = ASCII characters (0x00 - 0x7F)
8 = Hexadecimal characters ('A-F' or 'a-f' or '0-9')
9 = Printable character (0x20-0x7E)
10 = Control character (0x00-0x1F or 0x7F)
11 = White Space characters (0x09-0x0D or 0x20)
Remarks
StringTest() on page 97 function returns true to DiscreteResult if the first character in Text is of the type
specified by TestType. Otherwise, false is returned. If the StringTest() on page 97 function contains more
than one character, only the first character of the attribute is tested.
Examples
StringTest("ACB123",1) ' returns 1;
StringTest("ABC123",5) ' returns 0;
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringToIntg() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringToIntg()
Converts the numeric value of a string to an integer value and returns the result.
Category
String
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Syntax
IntegerResult = StringToIntg( Text );
Parameter
Text
String that function acts on. Actual string or a string attribute.
Remarks
When this statement is evaluated, the system reads the first character of the string for a numeric value. If
the first character is other than a number, the string's value is equated to zero (0). Blank spaces are
ignored. If the first character is a number, the system continues to read the subsequent characters until a
non-numeric value is detected.
Examples
StringToIntg("ABCD"); ' returns 0;
StringToIntg("22.2 is the Value"); ' returns 22 (since integers are whole
numbers);
StringToIntg("The Value is 22"); ' returns 0;
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringTest() on page 97, StringToReal() on page
98, StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
StringToReal()
Converts the numeric value of a string to a real (floating point) value and returns the result.
Category
String
Syntax
RealResult = StringToReal( Text );
Parameter
Text
String that function acts on. Actual string or a string attribute.
Remarks
When this statement is evaluated, the system reads the first character of the string for a numeric value. If
the first character is other than a number (blank spaces are ignored), the string's value is equated to zero
(0). If the first character is found to be a number, the system continues to read the subsequent characters
until a non-numeric value is encountered.
Examples
StringToReal("ABCD"); ' returns 0;
StringToReal("22.261 is the value"); ' returns 22.261;
StringToReal("The Value is 2"); ' returns 0;
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97,
StringTrim() on page 99, StringUpper() on page 99, Text() on page 100
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StringTrim()
Removes unwanted spaces from text and returns the result.
Category
String
Syntax
StringResult = StringTrim( Text, TrimType );
Parameter
Text
String that is trimmed of spaces. Actual string or a string attribute.
TrimType
Determines how the string is trimmed. Possible values are:
1 = Remove leading spaces to the left of the first non-space character
2 = Remove trailing spaces to the right of the last non-space character
3 = Remove all spaces except for single spaces between words
Remarks
The text is searched for white-spaces (ASCII 0x09-0x0D or 0x20) that are to be removed. TrimType
determines the method used by the function:
Examples
All spaces are represented by the "×" character.
StringTrim("×××××This×is×a××test×××××", 1) ' returns "This×is×a××test×××××";
StringTrim("×××××This×is×a××test×××××", 2) ' returns "×××××This×is×a××test";
StringTrim("×××××This×is×a××test×××××", 3) ' returns "This×is×a×test";
The StringReplace() on page 94 function can remove ALL spaces from a specified a string attribute.
Simply replace all the space characters with a "null."
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97,
StringToReal() on page 98, StringUpper() on page 99, Text() on page 100
StringUpper()
Converts all lowercase text characters to uppercase and returns the result.
Category
String
Syntax
StringResult = StringUpper( Text );
Parameter
Text
String to be converted to uppercase. Actual string or a string attribute.
Remarks
Uppercase characters, symbols, numbers, and other special characters are not affected.
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Examples
StringUpper("abcd"); ' returns "ABCD";
StringUpper("22.2 is the value"); ' returns "22.2 IS THE VALUE";
See Also
StringASCII() on page 86, StringChar() on page 86, StringFromIntg() on page 89, StringFromReal() on
page 89, StringFromTime() on page 90, StringInString() on page 92, StringLeft() on page 92, StringLen()
on page 93, StringLower() on page 93, StringMid() on page 94, StringReplace() on page 94,
StringRight() on page 95, StringSpace() on page 96, StringTest() on page 97, StringToIntg() on page 97,
StringToReal() on page 98, StringTrim() on page 99, Text() on page 100
Text()
Converts a number to text based on a specified format.
Category
String
Syntax
StringResult = Text( Number, Format );
Parameters
Number
Any number or numeric attribute.
Format
Format to use in conversion. Actual string or a string attribute.
Examples
Text(66,"#.00"); ' returns 66.00;
Text(22.269,"#.00"); ' returns 22.27;
Text(9.999,"#.00"); ' returns 10.00;
The following example shows how to use this function within another function:
LogMessage("The current value of FreezerRoomTemp is:" + Text (FreezerRoomTemp,
"#.#"));
In the following example, MessageTag is set to "One=1 Two=2".
MessageTag = "One + " + Text(1,"#") + StringChar(32) + "Two +" + Text(2,"#");
See Also
StringFromIntg() on page 89, StringToIntg() on page 97, StringFromReal() on page 89, StringToReal()
on page 98
WWStringFromTime()
Converts a time value given in local time into UTC time (Coordinated Universal Time), and displays the
result as a string.
Category
String
Syntax
MessageResult = wwStringFromTime(SecsSince1-1-70,StringType);
Parameters
SecsSince1-1-70
Integer Type. Number of Seconds elapsed since Jan 01 00:00:00 1970.
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StringType
Determines the display method:
1 = Displays the date in the same format set from the windows control Panel. (Similar to that
displayed for $DateString.)
2 = Displays the time in the same format set from the Windows control Panel. (Similar to that
displayed for $TimeString.)
3 = Displays a 24-character string indicating both the date and time: "Wed Jan 02 02:03:55 1993"
4 = Displays the short form for the day of the week: "Wed"
5 = Displays the long form for the day of the week: "Wednesday"
Remarks
Any adjustments necessary due to Daylight Savings Time will automatically be applied to the return
result. Therefore, it is not necessary to make any manual adjustments for DST to the input value.
Example
This example assumes that the time zone on the local node is Pacific Standard Time (UTC-0800). The
local time passed to the function is 04:00:00 PM on Thursday, 1/1/1970. Since PST is 8 hours behind
UTC, the function will return the following results:
wwStringFromTime(57600, 1) will return "1/2/70"
wwStringFromTime(57600, 2) will return "12:00:00 AM"
wwStringFromTime(57600, 3) will return "Fri Jan 02 00:00:00 1970"
wwStringFromTime(57600, 4) will return "Fri"
wwStringFromTime(57600, 5) will return "Friday"
System Functions
Use system functions to interact with the operating system or other core system functions, such as
ActiveX objects.
CreateObject()
Creates an ActiveX (COM) object.
Category
System
Syntax
ObjectResult = CreateObject( ProgID );
Parameter
ProgID
The program ID (as a string) of the object to be created.
Example
CreateObject("ADODB.Connection");
Now()
Returns the current time.
Category
System
Syntax
TimeValue = Now();
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Remarks
The return value can be formatted using .NET functions.
WWDDE Functions
Use WWDDE functions when working with the DDE protocol.
WWExecute()
Using the DDE protocol, executes a command to a specified application and topic and returns the status.
Category
WWDDE
Syntax
Status = WWExecute( Application, Topic, Command );
Parameters
Application
The application to which you want to send an execute command. Actual string or a string attribute.
Topic
The topic within the application. Actual string or a string attribute.
Command
The command to send. Actual string or a string attribute.
Return Value
Status is an Integer attribute to which 1, -1, or 0 is written. The WWExecute() function returns 1 if the
application is running, the topic exists, and the command was sent successfully. It returns 0 when the
application is busy, and -1 when there is an error.
Remarks
Note: The three WWDDE functions Execute(), Poke() and Request() exist for legacy purposes.
The Command string is sent to a specified application and topic.
Important: The following applies to using WWExecute() in synchronous scripts:
1. Never loop them (call them over and over).
2. Never call several of them in a row and in the same script.
3. Never use them to call a lengthy task in another DDE application.
All three actions, though, are appropriate in asynchronous scripts.
Examples
The following statement executes a macro in Excel:
Macro="Macro1!TestMacro";
Command="[Run(" + StringChar(34) + Macro + StringChar(34)
+ ",0)]";
WWExecute("excel","system",Command);
When WWExecute("excel","system",Command); is processed, the following is sent to Excel (and
TestMacro runs):
[Run("Macro1!TestMacro")];
The following script executes a macro in Microsoft Access:
WWExecute("MSAccess","system","MyMacro");
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WWPoke()
Using the DDE protocol, pokes a value to a specified application, topic, and item and returns the status.
Category
WWDDE
Syntax
Status = WWPoke( Application, Topic, Item, TextValue );
Parameters
Application
The application to which you want to send the Poke command. Actual string or a string attribute.
Topic
The topic within the application. Actual string or a string attribute.
Item
The item to poke within the topic. Actual string or a string attribute.
TextValue
The value to poke. If the value you want to send is a number, you can convert it using the Text() on
page 100, StringFromIntg() on page 89, or StringFromReal() on page 89 functions. Actual string or a
string attribute.
Return Value
Status is an Integer attribute to which 1, -1, or 0 is written. The WWPoke() function returns 1 if the
application is running, the topic and item exist, and the value was sent successfully. It returns 0 if the
application is busy, and -1 if there is an error.
Remarks
Note: The three WWDDE functions Execute(), Poke() and Request() exist for legacy purposes.
The value TextValue is sent to the particular application, topic, and item specified.
Important: The following applies to using WWRequest() in synchronous scripts:
1. Never loop them (call them over and over).
2. Never call several of them in a row and in the same script.
3. Never use them to call a lengthy task in another DDE application. All three actions, though, are
appropriate in asynchronous scripts.
Example
The following statement converts a value to text and pokes the result to an Excel spreadsheet cell:
String=Text(Value,"0");
WWPoke("excel","[Book1.xls]sheet1","r1c1",String);
The behavior for WWPoke() from within the application "View" to "View" is undefined and is not
supported. The WWPoke() command is not guaranteed to succeed in this instance, and the command
will probably time-out without the desired results.
See Also
Text() on page 100, StringFromIntg() on page 89, StringFromReal() on page 89
WWRequest()
Using the DDE protocol, makes a one-time request for a value from a particular application, topic, and
item and returns the status.
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Category
WWDDE
Syntax
Status = WWRequest( Application, Topic, Item, Attribute );
Parameters
Application
The application from which you want to request data. Actual string or a string attribute.
Topic
The topic within the application. Actual string or a string attribute.
Item
The item within the topic. Actual string or a string attribute.
Attribute
A string attribute, enclosed in quotation marks, that contains the requested value from the
application, topic, and item. Actual string or a string attribute.
Return Value
Status is an integer attribute to which 1, -1, or 0 is written. The WWRequest() function returns 1 if the
application is running, the topic and item exist, and the value was returned successfully. It returns 0 if the
application is busy, and -1 if there is an error.
Remarks
Note: The three WWDDE functions Execute(), Poke() and Request() exist for legacy purposes.
The DDE value in the particular application, topic, and item is returned into Attribute.
The value is returned as a string into a string attribute. If the value is a number, you can then convert it
using the StringToIntg() on page 97 or StringToReal() on page 98 functions.
Important: Never do the following when using WWRequest() in synchronous scripts:
1. Loop scripts (call them over and over).
2. Call several of scripts in a row and in the same script.
3. Use scripts to call a lengthy task in another DDE application.
All three actions can be done in asynchronous scripts.
Example
The following statement requests a value from an Excel spreadsheet cell and converts the resulting
string into a value:
WWRequest("excel","[Book1.xls]sheet1","r1c1",Result);
Value=StringToReal(Result);
See Also
StringToIntg() on page 97, StringToReal() on page 98
QuickScript .NET Operators
The following QuickScript .NET operators require a single operand:
Operator
Short Description
~
Complement
-
Negation
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Operator
Short Description
NOT
Logical NOT
The following QuickScript .NET operators require two operands:
Operator
Short Description
+
Addition and concatenation
-
Subtraction
&
Bitwise AND
*
Multiplication
**
Power
/
Division
^
Exclusive OR
|
Inclusive OR
<
Less than
<=
Less than or equal to
<>
Not equal to
=
Assignment
==
Equivalency (is equivalent to); not supported for entire array
compares. Arrays must be compared one element at a time using
==.
>
Greater than
>=
Greater than or equal to
AND
Logical AND
MOD
Modulo
OR
Logical OR
SHL
Left shift
SHR
Right shift
The following table shows the precedence of QuickScript .NET operators:
Precedence
Operator
1 (highest)
( )
2
- (negation), NOT, ~
3
**
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Precedence
Operator
4
*, /, MOD
5
+, - (subtraction)
6
SHL, SHR
7
<, >, <=, >=
8
==, <>
9
&
10
^
11
|
12
=
13
AND
14 (lowest)
OR
The arguments of the listed operators can be numbers or attribute values. Putting parentheses around
an argument is optional. Operator names are not case-sensitive.
Parentheses ( )
Parentheses specify the correct order of evaluation for the operator(s). They can also make a complex
expression easier to read. Operator(s) in parentheses are evaluated first, preempting the other rules of
precedence that apply in the absence of parentheses. If the precedence is in question or needs to be
overridden, use parentheses.
In the example below, parentheses add B and C together before multiplying by D:
( B + C ) * D;
Negation ( - )
Negation is an operator that acts on a single component. It converts a positive integer or real number into
a negative number.
Complement ( ~ )
This operator yields the one's complement of a 32-bit integer. It converts each zero-bit to a one-bit and
each one-bit to a zero-bit. The one's complement operator is an operator that acts on a single
component, and it accepts an integer operand.
Power ( ** )
The Power operator returns the result of a number (the base) raised to the power of a second number
(the power). The base and the power can be any real or integer numbers, subject to the following
restrictions:
A zero base and a negative power are invalid.
Example: "0 ** - 2" and "0 ** -2.5"
A negative base and a fractional power are invalid.
Example: "-2 ** 2.5" and "-2 ** -2.5"
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Invalid operands yield a zero result.
The result of the operation should not be so large or so small that it cannot be represented as a real
number. Example:
1 ** 1 = 1.0
3 ** 2 = 9.0
10 ** 5 = 100,000.0
Multiplication ( * ), Division ( / ), Addition ( + ),Subtraction ( - )
These binary operators perform basic mathematical operations. The plus (+) can also concatenate String
datatypes.
For example, in the data change script below, each time the value of "Number" changes, "Setpoint"
changes as well:
Number=1;
Setpoint.Name = "Setpoint" + Text(Number, "#" );
Where: The result is "Setpoint1."
Modulo (MOD)
MOD is a binary operator that divides an integer quantity to its left by an integer quantity to its right. The
remainder of the quotient is the result of the MOD operation. Example:
97 MOD 8 yields 1
63 MOD 5 yields 3
Shift Left (SHL), Shift Right (SHR)
SHL and SHR are binary operators that use only integer operands. The binary content of the 32-bit word
referenced by the quantity to the left of the operator is shifted (right or left) by the number of bit positions
specified in the quantity to the right of the operator.
Bits shifted out of the word are lost. Bit positions vacated by the shift are zero-filled. The shift is an
unsigned shift.
Bitwise AND ( & )
A bitwise binary operator compares 32-bit integer words with each other, bit for bit. Typically, this
operator masks a set of bits. The operation in this example "masks out" (sets to zero) the upper 24 bits of
the 32-bit word. For example:
result = name & 0xff;
Exclusive OR (^) and Inclusive OR ( | )
The ORs are bitwise logical operators compare 32-bit integer words to each other, bit for bit. The
Exclusive OR compare the status of bits in corresponding locations. If the corresponding bits are the
same, a zero is the result. If the corresponding bits differ, a one is the result. Example:
0 ^ 0 yields 0
0 ^ 1 yields 1
1 ^ 0 yields 1
1 ^ 1 yields 0
The Inclusive OR examines the corresponding bits for a one condition. If either bit is a one, the result is a
one. Only when both corresponding bits are zeros is the result a zero. For example:
0 | 0 yields 0
0 | 1 yields 1
1 | 0 yields 1
1 | 1 yields 1
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Assignment ( = )
Assignment is a binary operator which accepts integer, real, or any type of operand. Each statement can
contain only one assignment operator. Only one name can be on the left side of the assignment operator.
Read the equal sign (=) of the assignment operator as "is assigned to" or "is set to."
Note: Do not confuse the equal sign with the equivalency sign (==) used in comparisons.
Comparisons ( <, >, <=, >=, ==, <> )
Comparisons in IF-THEN-ELSE statements execute various instructions based on the state of an
expression.
AND, OR, and NOT
These operators work only on discrete attributes. If these operators are used on integers or real
numbers, they are converted as follows:
Real to Discrete: If real is 0.0, discrete is 0, otherwise discrete is 1.
Integer to Discrete: If integer is 0, discrete is 0, otherwise discrete is 1.
If the statement is: "Disc1 = Real1 AND Real2;" and Real1 is 23.7 and Real2 is 0.0, Disc1 has 0
assigned to it, since Real1 is converted to 1 and Real2 is converted to 0.
When assigning the floating-point result of a mathematical operation to an integer, the value is rounded
to the nearest integer instead of truncating it. This means that an operation like IntAttr = 32/60
results in IntAttr having a value of 1, not 0. If truncation is needed, use the Trunc() function.
QuickScript .NET Variables
QuickScript .NET variables must be declared before they can be used in QuickScript .NET scripts.
Variables can be used on both the left and right side of statements and expressions.
Local variables or attributes can be used together in the same script. Variables declared within the script
body lose their value after the script is executed. Those declared in the script body cannot be accessed
by other scripts.
Variables declared in the Declarations area maintain their values throughout the lifetime of the object
that the script is associated with.
Each variable must be declared in the script by a separate DIM statement followed by a semicolon. Enter
DIM statements in the Declarations area of the Script tab page. The DIM statement syntax is as follows:
DIM <variable_name> [ ( <upper_bound>
[, <upper_bound >[, < upper_bound >]] ) ]
[ AS <data_type> ];
where:
DIM
Required keyword.
<variable_name>
Name that begins with a letter (A-Z or a-z) and whose remaining characters
can be any combination of letters (A-Z or a-z), digits (0-9) and underscores
(_). The variable name is limited to 255 Unicode characters.
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<upper_bound>
Reference to the upper bound (a number between 1 and 2,147,483,647,
inclusive) of an array dimension. Three dimensions are supported in a DIM
statement, each being nested in the syntax structure. After the upper bound is
specified, it is fixed after the declaration. A statement similar to Visual Basic’s
ReDim is not supported.
The lower bound of each array dimension is always 1.
AS
Optional keyword for declaring the variable’s datatype.
<data_type>
Any one of the following 11 datatypes: Boolean, Discrete, Integer,
ElapsedTime, Float, Real, Double, String, Message, Time or Object.
Data_type can also be a .Net data_type like System.Xml.XmlDocument or a
type defined in an imported script library
If you omit the AS clause from the DIM statement, the variable, by default, is
declared as an Integer datatype. For example:
DIM LocVar1;
is equivalent to:
DIM LocVar1 AS Integer;
In contrast to attribute names, variable names must not contain dots. Variable names and the data type
identifiers are not case sensitive. If there is a naming conflict between a declared variable and another
named entity in the script (for example, attribute name, alias or name of an object leveraged by the
script), the variable name takes precedence over the other named entities. If the variable name is the
same as an alias name, a warning message appears when the script is validated to indicate that the alias
is ignored.
The syntax for specifying the entire array is "[ ]" for both local array variables and for attribute references.
For example, to assign an attribute array to a local array, the syntax is:
locarr[] = tag.attr[];
DIM statements can be located anywhere in the script body, but they must precede the first referencing
script statement or expression. If a local variable is referenced before the DIM statement, script validation
done when you save the object containing the script prompts you to define it.
Caution: The validation mentioned above occurs only when you save the object containing the script.
This is not the script syntax validation done when you click the Validate Script button.
Do not cascade DIM statements. For example, the following examples are invalid:
DIM LocVar1 AS Integer, LocVar2 AS Real;
DIM LocVar3, LocVar4, LocVar5, AS Message;
To declare multiple variables, you must enter separate DIM statements for each variable.
When used on the right side of an equation, declared local variables always cause expressions on the
left side to have Good quality. For example :
dim x as integer;
dim y as integer;
x = 5;
y = 5;
me.attr = 5;
me.attr = x;
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me.attr = x+y;
In each case of me.attr, quality is Good.
When you use a variable in an expression to the right of the operator, its Quality is treated as Good for
the purpose of data quality propagation.
You can use null to indicate that there is no object currently assigned to a variable. Using null has the
same meaning as the keyword "null" in C# or "nothing" in Visual Basic. Assigning null to a variable makes
the variable eligible for garbage collection. You may not use a variable whose value is null. If you do, the
script terminates and an error message appears in the logger. You may, however, test a variable for null.
For example:
IF myvar == null THEN ...
It is not possible to pass attributes as parameters for system objects. To work around this issue, use a
local variable as an intermediary or explicitly convert the attribute to a string using an appropriate
function call when calling the system object.
Numbers and Strings
Allowed format for integer constants in decimal format is as follows:
IntegerConst = 0 or [sign] <non-zero_digit> <digit>*;
where:
sign :: = + | -
non-zero_digit ::= 1-9
digit ::= 0-9
For example, an integer constant is a zero or consists of an optional sign followed by one or more digits.
Leading zeros are not allowed. Integer constants outside the range –2147483648 to 2147483647 cause
an overflow error.
Prepending either 0x or 0X causes a literal integer constant to be interpreted as hexadecimal notation.
The +/- sign is supported.
The acceptable float for integers in hexadecimal is as follows:
IntegerHexConst = [<sign>] <0><x (or X)> <hexdigit>*
where:
sign ::= + or -
hexdigit ::= 0-9, A-F, a-f (only eight hexdigits [32-bits] are allowed)
Allowed format for floats is as follows:
FloatConst ::= [<sign>] <digit>* .<digit>+ [<exponent>;]
or
[<sign>] <digit>+ [.<digit>* [<exponent>]];
where:
sign ::= + or -
digit ::= 0-9 (can be one or more decimal digits)
exponent = e (or E) followed by a sign and then digit(s)
Float constants are applicable as values for variables of type float, real, or double. For example, float
constants do not take the number of bytes into account. Script validation detects an overflow when a
float, real, or double variable has been assigned a float constant that exceeds the maximum value.
If no digits appear before the period (.), at least one must appear after it. If neither an exponent part nor
the period appears, a period is assumed to follow the last digit in the string.
If an attribute reference exists that has a format similar to a float constant with an exponent (such as
"5E3"), then use the Attribute qualifier, as follows:
Attribute("5E3")
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Strings must be surrounded by double quotation marks. They are referred to as quoted strings. The
double-double quote indicates a single double-quote in the string. For example, the string:
Joe said, "Look at that."
can be represented in QuickScript .NET as:
"Joe said, ""Look at that."""
QuickScript .NET Control Structures
QuickScript .NET provides five primary control structures in the scripting environment:
IF … THEN … ELSEIF … ELSE … ENDIF on page 111
FOR … TO … STEP … NEXT Loop on page 113
FOR EACH … IN … NEXT on page 114
TRY ... CATCH on page 114
WHILE Loop on page 115
IF … THEN … ELSEIF … ELSE … ENDIF
IF-THEN-ELSE-ENDIF conditionally executes various instructions based on the state of an expression.
The syntax is as follows:
IF <Boolean_expression> THEN
[statements];
[ { ELSEIF
[statements] } ];
[ ELSE
[statements] ];
ENDIF;
Where Boolean_expression is an expression that can be evaluated as a Boolean.
Depending on the data type returned by the expression, the expression is evaluated to constitute a True
or False state according to the following table:
Data Type
Mapping
Boolean, Discrete
Directly used (no mapping needed).
Integer
Value = 0 evaluated as False.
Value != 0 evaluated as True.
Float, Real
Value = 0 evaluated as False.
Value != 0 evaluated as True.
Double
Value = 0 evaluated as False.
Value != 0 evaluated as True.
String, Message
Cannot be mapped. Using an expression that results in a string type as the
Boolean_expression results in a script validation error.
Time
Cannot be mapped. Using an expression that results in a time type as the
Boolean_expression results in a script validation error.
ElapsedTime
Cannot be mapped. Using an expression that results in an elapsed time type
as the Boolean_expression results in a script validation error.
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Data Type
Mapping
Object
Using an expression that results in an object type. Validates, but at run
time, the object is converted to a Boolean. If the type cannot be converted to
a Boolean, a run-time exception is raised.
The first block of statements is executed if Boolean_expression evaluates to True. Optionally, a second
block of statements can be defined after the keyword ELSE. This block is executed if the
Boolean_expression evaluates to False.
To help decide between multiple alternatives, an optional ELSEIF clause can be used as often as
needed. The ELSEIF clause mimics switch statements offered by other programming languages. For
example:
IF value == 0 Then
Message = "Value is zero";
ELSEIF value > 0 Then
Message = "Value is positive"; ELSEIF value < 0 Then
Message = "Value is negative";
ELSE
{Default. Should never occur in this example};
ENDIF;
The following approach nests a second IF compound statement within a previous one and requires an
additional ENDIF:
IF (X1 == 1) THEN
X1 = 5;
{ ELSEIF <X1 == 2> THEN
X1 = 10;
ELSEIF X1 == 3 THEN
X1 = 20 ;
ELSEIF X1 == 4 THEN
X1 = 30 };
IF X1 == 99 THEN
X1 = 0;
ENDIF;
ENDIF;
See Sample Scripts for more ideas about using this type of control structure.
IF … THEN … ELSEIF … ELSE … ENDIF and Attribute Quality
When an attribute value is copied to another attribute of the same type, the attribute’s quality is also
copied. This can be especially relevant when working with I/O attributes. For example, the following two
statements copy both value and quality:
me.Attr2 = me.Attr1;
me.Attr2.value = me.Attr1.value;
If only the value needs to be copied and the attribute has the quality BAD, you can use a temporary
variable to hold the value. For example:
Dim temp as Integer;
temp = me.Attr1;
me.Attr2 = temp;
If there is a comparison such as Attr1 <> Attr2 and one of the attributes has the quality BAD, then the
statements within the IF control block are not executed. For example, assuming Attr1 has the quality
BAD:
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if me.Attr1<> me.Attr2 then
me.Attr2 = me.Attr1;
endif;
In this script, the statement me.Attr2 = me.Attr1 is not executed because Attr1 has the quality BAD
and comparing a BAD quality value with a good quality value is not defined/not possible.
The recommended approach is to first verify the quality of Attr1, as shown in the following example:
if(IsBad(me.Attr1)) then
LogMessage("Attr1 quality is bad, its value is not copied to Attr2");
else
if me.Attr1<> me.Attr2 then
me.AttrA2 = me.Attr1;
endif;
endif;
An alternative method of verifying quality is to use the "==" operator:
if Me.Attr1 == TRUE then
Or, you can add the "value" property to the simplified IF THEN statement:
if Me.Attr1.value then
Using any of the above methods to verify data quality will ensure that your scripts execute correctly.
FOR … TO … STEP … NEXT Loop
FOR-NEXT performs a function (or set of functions) within a script several times during a single
execution of a script. The general format of the FOR-NEXT loop is as follows:
FOR <analog_var> = <start_expression> TO <end_expression> [STEP
<change_expression>];
[statements];
[EXIT FOR;];
[statements];
NEXT;
Where:
analog_var is a variable of type Integer, Float, Real, or Double.
start_expression is a valid expression to initialize analog_var to a value for execution of the loop.
end_expression is a valid expression. If analog_var is greater than end_expression, execution of the
script jumps to the statement immediately following the NEXT statement.
This holds true if loop is incrementing up, otherwise, if loop is decrementing, loop termination occurs
if analog_var is less than end_expression.
change_expression is an expression that defines the increment or decrement value of analog_var
after execution of the NEXT statement. The change_expression can be either positive or negative.
o If change_expression is positive, start_expression must be less than or equal to end_expression
or the statements in the loop do not execute.
o If change_expression is negative, start_expression must be greater than or equal to
end_expression for the body of the loop to be executed.
If STEP is not set, then change_expression defaults to 1 for increasing increments, and defaults to -1
for decreasing increments.
Exit the loop from within the body of the loop with the EXIT FOR statement.
The FOR loop is executed as follows:
1. analog_var is set equal to start_expression.
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2. If change_expression is positive, the system tests to see if analog_var is greater than
end_expression. If so, the loop exits. If change_expression is negative, the system tests to see if
analog_var is less than end_expression. If so, program execution exits the loop.
3. The statements in the body of the loop are executed. The loop can potentially be exited via the EXIT
FOR statement.
4. analog_var is incremented by 1,-1, or by change_expression if it is specified.
5. Steps 2 through 4 are repeated.
Note: FOR-NEXT loops can be nested. The number of levels of nesting possible depends on memory
and resource availability.
FOR EACH … IN … NEXT
FOR EACH loops can be used only with collections exposed by OLE Automation servers. A FOR-EACH
loop performs a function (or set of functions) within a script several times during a single execution of a
script. The general format of the FOR-EACH loop is as follows:
FOR EACH <object_variable> IN <collection_object >
[statements];
[EXIT FOR;];
[statements];
NEXT;
Where:
object_variable is a dimmed variable.
collection_object is a variable holding a collection object.
As in the case of the FOR … TO loop, it is possible to exit the execution of the loop through the statement
EXIT FOR from within the loop.
TRY ... CATCH
TRY ... CATCH provides a way to handle some or all possible errors that may occur in a given block of
code, while still running rather than terminating the program. The TRY part of the code is known as the try
block. Deal with any exceptions in the CATCH part of the code, known as the catch block.
The general format for TRY ... CATCH is as follows:
TRY
[try statements] ’guarded section
CATCH
[catch statements]
ENDTRY
Where:
tryStatements
Statement(s) where an error can occur. Can be a compound statement. The tryStatement is a
guarded section.
catchStatements
Statement(s) to handle errors occurring in the associated Try block. Can be a compound statement.
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Note: Statements inside the Catch block may reference the reserved ERROR variable, which is a .NET
System.Exception thrown from the Try block. The statements in the Catch block run only if an exception
is thrown from the Try block.
TRY ... CATCH is executed as follows:
1. Run-time error handling starts with TRY. Put code that might result in an error in the try block.
2. If no run-time error occurs, the script will run as usual. Catch block statements will be ignored.
3. If a run-time error occurs, the rest of the try block does not execute.
4. When a run-time error occurs, the program immediately jumps to the CATCH statement and
executes the catch block.
The simplest kind of exception handling is to stop the program, write out the exception message, and
continue the program.
The error variable is not a string, but a .NET object of System.Exception. This means you can
determine the type of exception, even with a simple CATCH statement. Call the GetType() method to
determine the exception type, and then perform the operation you want, similar to executing multiple
catch blocks.
Example:
dim command = new System.Data.SqlClient.SqlCommand;
dim reader as System.Data.SqlClient.SqlDataReader;
command.Connection = new System.Data.SqlClient.SqlConnection;
try
command.Connection.ConnectionString = "Integrated Security=SSPI";
command.CommandText="select * from sys.databases";
command.Connection.Open();
reader = command.ExecuteReader();
while reader.Read()
me.name = reader.GetString(0);
LogMessage(me.name);
endWhile;
catch
LogMessage(error);
endtry;
if reader <> null and not reader.IsClosed then
reader.Close();
endif;
if command.Connection.State == System.Data.ConnectionState.Open then
command.Connection.Close();
endif;
WHILE Loop
WHILE loop performs a function or set of functions within a script several times during a single execution
of a script while a condition is true. The general format of the WHILE loop is as follows:
WHILE <Boolean_expression>
[statements]
[EXIT WHILE;]
[statements]
ENDWHILE;
Where: Boolean_expression is an expression that can be evaluated as a Boolean as defined in the
description of IF…THEN statements.
It is possible to exit the loop from the body of the loop through the EXIT WHILE statement.
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The WHILE loop is executed as follows:
1. The script evaluates whether the Boolean_expression is true or not. If not, program execution exits
the loop and continues after the ENDWHILE statement.
2. The statements in the body of the loop are executed. The loop can be exited through the EXIT
WHILE statement.
3. Steps 1 through 2 are repeated.
Note: WHILE loops can be nested. The number of levels of nesting possible depends on memory and
resource availability.
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This section includes sample scripts to help you to understand the QuickScript .NET scripting language.
Important Notes: The sample scripts provided with a number of the Application Server scripting
functions should work as written in most Windows operati ng system and installed software
environments, but might not work with all possible hardware, operating system, and software
combinations. We recommend that you modify the example scripts as necessary to fit your specific
environment.
Some sample scripts include references to public websites as examples. You may need to replace those
URLs with a current and verified URLs.
Accessing an Excel Spreadsheet Using an Imported Type
Library
The purpose of this script is to write data to an open Excel spreadsheet.
Before using this script, you must first:
1. Import the Microsoft Office Excel dll (Microsoft.Office.Interop.Excel.dll) to create the required
namespace. From the Galaxy menu, select Import, then Script Function Library.
Note: The Microsoft Office Excel dll file name and location may vary, depending on which version of
Excel is installed.
2. Open the Excel spreadsheet you want to access. In the following sample script, the Excel file name
and path are: C:\documents\sample.xlsx
dim app as object;
dim wb as object;
dim ws as object;
app = CreateObject("Excel.Application");
app.Visible=true;
wb = app.Workbooks.Open("C:\documents\sample.xlsx");
ws = wb.ActiveSheet;
ws.Range("A1").Value = 100;
ws.Range("A2").Value = 200;
ws.Range("A3").Value = "=A1*A2";
LogMessage(ws.Range("A3").Value);
wb.Visible=true;
wb.Close(false);
Accessing an Excel Spreadsheet Using CreateObject
dim app as object;
dim wb as object;
dim ws as object;
app = CreateObject("Excel.Application");
wb = app.Workbooks.Add();
CHAPTER 3
Sample QuickScript .NET Scripts
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ws = wb.ActiveSheet;
ws.Range.("A1").value = 20;
ws.Range.("A2").value = 30;
ws.Range.("A3").value = "=A1*A2";
LogMessage(ws.Range("A3").Value);
wb.Close(false);
Calling a Web Service to Get the Temperature for a Specified
Zip Code
Note: This sample script includes a reference to a public website as an example. You may need to
replace that URL with a current and verified URL.
' Requires input string uda me.zipcode and output float uda me.temperature.
' First, generate a wrapper for the web service (.Net SDK must be installed).
' To generate wrapper, run the following commands from the DOS prompt:
' set path=%path%;C:\Program Files\Microsoft Visual Studio
.NET\FrameworkSDK\Bin
' wsdl http://www.vbws.com/services/weatherretriever.asmx
' csc /target:library WeatherRetriever.cs
' Next import the generated WeatherRetriever.dll library into your galaxy.
' Now write your script:
dim wr as WeatherRetriever;
wr = new WeatherRetriever;
me.temperature = wr.GetTemperature(me.zipcode);
Calling a Web Service to Send an E-mail Message
Note: This sample script includes a reference to a public website as an example. You may need to
replace that URL with a current and verified URL.
' First, generate a wrapper for the web service (.Net SDK must be installed).
' To generate wrapper, run the following commands from the DOS prompt:
' set path=%path%;C:\Program Files\Microsoft Visual Studio
.NET\FrameworkSDK\Bin
' wsdl /namespace:SendMail
http://www.xml-webservices.net/services/messaging/smtp_mail/mailsender.asmx
' csc /target:library Message.cs
' Next import the generated Message.dll library into your galaxy.
' Now write your script:
dim m as SendMail.Message;
m = new SendMail.Message;
m.SendSimpleMail
(
{to: } "<type valid email address here>",
{from: } "<type valid email address here>",
{subject: } "Reminder to self",
{body: } "Pick up eggs and milk on your way home."
);
Creating a Look-up Table and Doing a Look-up on It
dim zipcodes as System.Collections.Hashtable;
zipcodes = new System.Collections.Hashtable;
zipcodes["Irvine"] = 92618;
zipcodes["Mission Viejo"] = 92692;
LogMessage(zipcodes["Irvine"]);
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Creating an XML Document and Saving it to Disk
dim doc as System.Xml.XmlDocument;
dim catalog as System.Xml.XmlElement;
dim book as System.Xml.XmlElement;
dim title as System.Xml.XmlElement;
dim author as System.Xml.XmlElement;
dim lastName as System.Xml.XmlElement;
dim firstName as System.Xml.XmlElement;
' create new XML document rooted in catalog
doc = new System.Xml.XmlDocument;
catalog = doc.CreateElement("catalog");
doc.AppendChild(catalog);
' add a book to the catalog
book = doc.CreateElement("book");
title = doc.CreateElement("title");
author = doc.CreateElement("author");
lastName = doc.CreateElement("lastName");
firstName = doc.CreateElement("firstName");
author.AppendChild(lastName);
author.AppendChild(firstName);
book.AppendChild(title);
book.AppendChild(author);
catalog.AppendChild(book);
book.SetAttribute("isbn", "0385503822");
title.InnerText = "The Summons";
lastName.InnerText = "Grisham";
firstName.InnerText = "John";
' add another book
book = doc.CreateElement("book");
title = doc.CreateElement("title");
author = doc.CreateElement("author");
lastName = doc.CreateElement("lastName");
firstName = doc.CreateElement("firstName");
author.AppendChild(lastName);
author.AppendChild(firstName);
book.AppendChild(title);
book.AppendChild(author);
catalog.AppendChild(book);
book.SetAttribute("isbn", "044023722X");
title.InnerText = "A Painted House";
lastName.InnerText = "Grisham";
firstName.InnerText = "John";
' save the XML document to disk
doc.Save("c:\catalog.xml");
Executing a SQL Parameterized INSERT Command
dim connection as System.Data.SqlClient.SqlConnection;
dim command as System.Data.SqlClient.SqlCommand;
dim regionId as System.Data.SqlClient.SqlParameter;
dim regionDesc as System.Data.SqlClient.SqlParameter;
dim commandText as string;
connection = new
System.Data.SqlClient.SqlConnection("server=(local);uid=sa;database=northwin
d");
connection.Open();
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commandText = "INSERT INTO Region (RegionID, RegionDescription) VALUES (@id,
@desc)";
command = new System.Data.SqlClient.SqlCommand(commandText, connection);
regionId = command.Parameters.Add("@id", System.Data.SqlDbType.Int, 4);
regionDesc = command.Parameters.Add("@desc", System.Data.SqlDbType.NChar, 50);
command.Prepare();
regionId.Value = 5;
regionDesc.Value = "Europe";
command.ExecuteNonQuery();
regionId.Value = 6;
regionDesc.Value = "South America";
command.ExecuteNonQuery();
connection.Close();
Filling a String Array and Using It
dim numbers[3] as string;
dim s as string;
numbers[1] = "one";
numbers[2] = "two";
numbers[3] = "three";
LogMessage(numbers[3]);
for each s in numbers[]
LogMessage(s);
next;
Filling a Two-Dimensional Integer Array and Using It
dim x[2,3] as integer;
dim i as integer;
x[1, 1] = 1;
x[1, 2] = 2;
x[1, 3] = 3;
x[2, 1] = 4;
x[2, 2] = 5;
x[2, 3] = 6;
LogMessage(x[2, 3]);
for each i in x[]
LogMessage(i);
next;
Formatting a Number Using a .NET Format 'Picture'
dim i as integer;
i = 1234;
LogMessage("Total cost: " + i.ToString("$#,###,###.00"));
Formatting a Time Using a .NET Format 'Picture'
dim t as time;
t = Now();
LogMessage("The current time is: " + t.ToString("hh:mm:ss") + ".");
Getting the Directories Under the C Drive
dim dir as System.IO.DirectoryInfo;
for each dir in System.IO.DirectoryInfo("c:\").GetDirectories()
LogMessage(dir.FullName);
next;
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Loading an XML Document from Disk and Doing Look-ups on
It
dim doc as System.Xml.XmlDocument;
dim node as System.Xml.XmlNode;
doc = new System.Xml.XmlDocument;
doc.Load("c:\catalog.xml");
' find the title of the book whose isbn is 044023722X
node = doc.SelectSingleNode("/catalog/book[@isbn='044023722X']/title");
LogMessage(node.InnerText);
' find all titles written by Grisham
for each node in
doc.SelectNodes("/catalog/book[author/lastName='Grisham']/title")
LogMessage(node.InnerText);
next;
Querying a SQL Server Database
dim connection as System.Data.SqlClient.SqlConnection;
dim command as System.Data.SqlClient.SqlCommand;
dim reader as System.Data.SqlClient.SqlDataReader;
connection = new
System.Data.SqlClient.SqlConnection("server=(local);uid=sa;database=northwin
d");
connection.Open();
command = new System.Data.SqlClient.SqlCommand("select * from customers",
connection);
reader = command.ExecuteReader();
while reader.Read()
LogMessage(reader("CompanyName"));
endwhile;
reader.Close();
connection.Close();
Reading a Performance Counter
' Requires output float UDA me.PercentProcessorTime.
' Declarations
dim counter as System.Diagnostics.PerformanceCounter;
' Startup
counter = new System.Diagnostics.PerformanceCounter;
counter.CategoryName = "Processor";
counter.CounterName = "% Processor Time";
counter.InstanceName = "0";
' Execute
me.PercentProcessorTime = counter.NextValue();
Reading a Text File from Disk
dim sr as System.IO.StreamReader;
sr = System.IO.File.OpenText("c:\MyFile.txt");
while sr.Peek() > -1
LogMessage(sr.ReadLine());
endwhile;
sr.Close();
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Sharing a SQL Connection or Any Other .NET Object
In UserDefined_001 do this:
dim connection as System.Data.SqlClient.SqlConnection;
’ Startup
connection = new
System.Data.SqlClient.SqlConnection("server=(local);uid=sa;database=northwin
d");
connection.Open();
System.AppDomain.CurrentDomain.SetData
("NorthwindConnection", connection);
’ Shutdown
System.AppDomain.CurrentDomain.SetData("NorthwindConnection", Null);
connection.Close();
Then in UserDefined_002, UserDefined_003, and so on, do this:
dim connection as System.Data.SqlClient.SqlConnection;
connection = System.AppDomain.CurrentDomain.GetData
("NorthwindConnection");
if connection <> null then
System.Threading.Monitor.Enter(connection);
' use the connection
System.Threading.Monitor.Exit(connection);
endif;
Using DDE to Access an Excel Spreadsheet
WWPoke("excel", "sheet1", "r1c1", "Hello");
WWRequest("excel", "sheet1", "r1c1", me.Greeting);
' Note: use "" to embed double quotation marks in strings
WWExecute("excel", "sheet1",
"[SELECT(""R1C1"")][FONT.PROPERTIES(,""Bold"")]");
Using Microsoft Exchange to Send an E-mail Message
The following compatibility notes apply to use of this script:
The script will not work on Microsoft Office 2010 or later due to changes in MAPI handling.
The script is supported only for 32-bit versions of Microsoft Office.
If you are using Microsoft Office 2007, you must download and install Microsoft Collaboration Data
Objects (CDO) 1.2.1. Additional information on CDO 1.2.1 is available at:
http://www.microsoft.com/en-us/download/details.aspx?id=3671
dim session as object;
dim msg as object;
dim sProfileInfo as string;
sProfileInfo = "<type valid Microsoft Exchange Server Name here>" +
StringChar(10) + "<type valid Exchange Server user name here>";
session = CreateObject("MAPI.Session");
session.Logon(, , False,False , , True, sProfileInfo);
msg = session.Outbox.Messages.Add();
msg.Recipients.Add("<type valid email address here>");
msg.Recipients.Resolve();
msg.Subject = "Reminder to self";
msg.Text = "Pick up eggs and milk on your way home.";
msg.Send();
session.Logoff();
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Using Screen-Scraping to Get the Temperature for a City
Note: This sample script includes a reference to a public website as an example. You may need to
replace that URL with a current and verified URL.
' Screen-scraping involves downloading a web page,
' then using a regular expression to retrieve the desired data.
' Requires input string UDA me.CityState, e.g. "Los Angeles,CA"
' and output float UDA me.temperature.
dim request as System.Net.WebRequest;
dim reader as System.IO.StreamReader;
dim regex as System.Text.RegularExpressions.Regex;
dim match as System.Text.RegularExpressions.Match;
request = System.Net.WebRequest.Create
(
"http://www.srh.noaa.gov/data/forecasts/zipcity.php?inputstring=" +
System.Web.HttpUtility.UrlEncode(me.CityState)
);
reader = new
System.IO.StreamReader(request.GetResponse().GetResponseStream());
regex = new System.Text.RegularExpressions.Regex("<br><br>(.*)&deg;F<br>");
match = regex.Match(reader.ReadToEnd());
me.temperature = match.Groups(1);
Using SMTP to Send an E-mail Message
System.Web.Mail.SmtpMail.Send
(
{from: } "<type valid email address here>",
{to: } "<type valid email address here>",
{subject: } "Reminder to self",
{body: } "Pick up eggs and milk on your way home."
);
Writing a Text File to Disk
dim sw as System.IO.StreamWriter;
sw = System.IO.File.CreateText("C:\MyFile.txt");
sw.WriteLine("one");
sw.WriteLine("two");
sw.WriteLine("three");
sw.Close();
Dynamically Binding an Indirect Variable to a Reference
You can dynamically bind a variable of type Indirect to an arbitrary reference string and then use it for
get/set purposes. For example:
' Assume reference obj1.Attr1 has value of 7
dim x as indirect;
dim s as string;
s = "obj1.Attr1";
x.BindTo(s); ' where s is any expression that returns a string.
' The string should be an ArchestrA reference.
obj2.Attr2 = x; ' sets obj2.Attr2 to the reference x is bound to
' (obj1.Attr1 in this example, which has value of 7)
x = 1234; ' sets obj1.Attr1 (in this example) to 1234
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IF WriteStatus(x) == MxStatusOk THEN
' ... do something
endif;
Note: You can use .BindTo with an attribute on another engine, but this requires additional scripting of
the bind to ensure good quality. For more information, see Binding to Off-engine Attributes on page 124.
An unbound indirect returns no data.
If the Galaxy has Advanced Communication Management enabled, we do not recommend that you use
references that are part of an ActiveOnDemand DIObject scan group in a script with an Indirect. The
reference activation process is not in sync with the script execution, so using a function such as the
IsUseable() function always returns false.
For example, the following scripting is NOT recommended.
In the declarations section:
Dim pPump as Indirect;
In Script Body section
pPump.BindTo("Pump_001.State"); 'Pump_001 is part of a DIObject scan group that
has ActiveOnDemand enabled
IF IsUsable(pPump)
THEN Do this….' this will not execute
ELSE
Do that…
ENDIF;
pPump.BindTo("Pump_002.State");'Pump_002 is part of a DIObject scan group that
has ActiveOnDemand enabled
IF IsUsable(pPump)
THEN Do this….' this will not execute
ELSE
Do that…
ENDIF;
In the script, only Pump_002 is executing all of the time.
Important: If you have an existing application that uses the same Indirect variable with scripting more
than one time for the items extended to device integration (DI) items or for DI items directly, and you
enable Advanced Communication Management in the IDE, these scripts behave differently or do not
execute as expected.
Binding to Off-engine Attributes
Reference binding is inherently an asynchronous process. This means that a reference to an attribute
hosted on the same engine is immediately available, but off-engine references can require additional
scan cycles to bind. In scripting binding to off-engine attributes, we recommend you check indirect
variables for quality before using them.
You can use the following guidelines when binding to off-engine attributes:
Declare the indirect variables in the declarations section of the script. This retains the value across
scan cycles.
Implement a mechanism to define different states of the script to distinguish between the normal
execution cycle and waiting for bound references to resolve.
In the execution or assignment state, use BindTo() to bind the indirect variables. After BindTo,
change the state to "waiting for references" to check these in the next scan.
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In the "waiting for reference" state, use IsGood() to check the quality of the indirect variables. When
all references show good quality, change to the normal execution state. The variables then are
usable.
You can implement a TimeOut state if required. For example, the remote engine might be Off Scan.
The following script examples illustrate these guidelines.
dim bindedRef1 as indirect;
dim bindedRef2 as indirect;
dim scriptState as integer;
' Script States
' 0 = normal execution
' 1 = wait for remote references
if (scriptState==0) then;
' normal script logic
' perform normal tasks
' ...
' for this example, change the binding to remote engine
if (System.DateTime.Now.Second mod 10 == 0) then;
LogMessage("Change binding (1)");
bindedRef1.BindTo("ApplicationObject_001.SimValue01");
bindedRef2.BindTo("ApplicationObject_001.SimValue02");
scriptState = 1;
endif;
if (System DateTime.Now.Second mod 10 == 5) then;
LogMessage("Change binding (2)");
bindedRef1.BindTo("ApplicationObject_001.SimValue2");
bindedRef2.BindTo("ApplicationObject_001.SimValue1");
scriptState = 1;
endif;
endif;
if (scriptState==1) then;
' wait for remote references
' in this example we want two valid references
if (IsGood(bindedRef1) and IsGood(bindedRef2)) then;
LogMessage("Binded references are good.");
scriptState = 0;
endif;
endif;
As an alternative, you can use a WHILE-triggered script to allow evaluation at every scan cycle.
Generally, WHILE loops are not recommended, but can be used to ensure execution.
In Declarations:
dim x as indirect;
dim y as boolean;
In Execute (while true: me.z):
if not y then
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'This could also be done in the startup script
x.BindTo("Object1.attribute1");
y = true;
endif;
if IsGood(x) then
LogMessage(x);
me.z = false;
endif;
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A
Abs() • 59
Accepting Autocomplete Suggestions • 14
Accessing an Excel Spreadsheet Using an
Imported Ty pe Library • 117
Accessing an Excel Spreadsheet Using
CreateObject • 117
ActivateApp() • 65
AddPermission() Function • 40
and system resources • 9
AND, OR, and NOT • 108
ArcCos() • 59
ArcSin() • 59
ArcTan() • 60
Assignment ( = ) • 108
AttemptInvisibleLogon() Function • 40
Autocomplete • 10
B
Binding to Off-engine Attributes • 124
Bitwise AND ( & ) • 107
C
Calling a Web Service to Get the Temperature
for a Specified Zip Code • 118
Calling a Web Service to Send an E-mail
Message • 118
ChangePassword() Function • 41
Closing a Client Application Window • 16
closing a client application window containing
scripts • 16
Color Indicators for Script Elements • 10
Common Scripting Environment • 7
Comparisons ( <, >, <=, >=, ==, <> ) • 108
Complement ( ~ ) • 106
Contact Information • 2
converting • 106
Cos() • 60
CreateObject() • 101
Creating a Look-up Table and Doing a Look-up
on It • 118
Creating an XML Document and Saving it to
Disk • 119
D
DateTimeGMT() • 66
Deployment Scripts • 9
deployment timeout period • 9
deployment timeout period, scripts • 9
description • 16
DText() • 85
dynamic reference scripting • 14
dynamic references • 14
dynamic referencing • 14
Dynamic Referencing Considerations • 14
Dynamically Binding an Indirect Variable to a
Reference • 123
E
EnableDisableKeys() Function • 42
entries • 7
errors • 14
Exclusive OR (^) and Inclusive OR ( | ) • 107
Execute method • 14
Execute Scripts • 8
Executing a SQL Parameterized INSERT
Command • 119
Exp() • 60
F
FileCopy() Function • 42
FileDelete() Function • 43
FileMove() Function • 44
FileReadFields() Function • 45
FileReadMessage() Function • 46
FileWriteFields() Function • 46
Index
AVEVA™ AVEVA Application Server formerly Wonderware Application Server Scripting Guide Index
128
FileWriteMessage() Function • 47
Filling a String Array and Using It • 120
Filling a Two-Dimensional Integer Array and
Using It • 120
Filtering Events • 65
FOR … TO … STEP … NE XT Loop • 113
FOR EACH … IN … NEXT • 114
Formatting a Number Using a .NET Format
'Picture' • 120
Formatting a Time Using a .NET Format
'Picture' • 120
G
GetAccountStatus() Function • 48
GetCPQuality() • 19
GetCPTimeStamp() • 20
GetNodeName() Function • 48
Getting the Directories Under the C Drive • 120
Graphic Client Functions • 19
H
HideContent() • 20
HideGraphic() • 24
HideSelf() • 24
I
IF … THEN … ELSEIF … ELSE … ENDIF • 111
IF … THEN … ELSEIF … ELSE … ENDIF and
Attribute Quality • 112
InfoAppTitle() Function • 49
InfoDisk() Function • 49
InfoFile() Function • 50
InfoInTouchAppDir() Function • 51
Int() • 61
InTouch Functions • 40
InTouchVersion() Function • 51
InvisibleVerifyCredentials() Function • 52
IsAssignedRole() Function • 52
IsBad() • 67
IsGood() • 67
IsInitializing() • 67
IsUncertain() • 68
IsUsable() • 68
L
LaunchTagViewer() Function • 53
Line Numbers • 17
Loading an XML Document from Disk and
Doing Look-ups on It • 121
Log Functions • 17
Log() • 61
Log10() • 61
LogCustom() • 69
LogDataChangeEvent() • 69
LogDataChangeEvent() script function • 69
LogError() • 70
LogMessage() • 71
LogN() • 62
Logoff() • 25
LogonCurrentUser() Function • 53
LogTrace() • 71
LogWarning() • 72
M
Math Functions • 58
Maximizing or Restoring a Client Application
Window • 17
memory load and scripts • 9
memory load during deployment • 9
memory types • 107
message types • 107
message types, concatenating • 107
Minimizing a Client Application Window • 17
minimizing a client application window
containing scripts • 17
Miscellaneous Functions • 65
Modulo (MOD) • 107
Multi-level Undo and Redo • 14
Multiplication ( * ), Division ( / ), Addition ( +
),Subtraction ( - ) • 107
N
Negation ( - ) • 106
Now() • 101
Numbers and Strings • 110
O
OffScan Scripts • 9
Index AVEVA™ AVEVA Application Server formerly Wonderware Application Server Scripting Guide
129
OnScan Scripts • 8
OnScan scripts system resources • 9
Opening a Client Application Window • 16
opening a client application window containing
scripts • 16
order of evaluation, operators • 106
P
Parentheses ( ) • 106
Pi() • 62
PlaySound() Function • 54
positive integers • 106
PostLogonDialog() Function • 54
Power ( ** ) • 106
PrintScreen() Function • 54
Q
QueryGroupMembership() Function • 55
Querying a SQL Server Database • 121
QuickScript .NET Control Structures • 111
QuickScript .NET Functions • 19
QuickScript .NET Operators • 104
QuickScript .NET Variables • 108
R
raising to the power • 106
Reading a Performance Count er • 121
Reading a Text File from Disk • 121
real numbers • 106
reference scripting • 14
referencing • 14
Required Syntax for Expressions and Scripts • 7
resource load and scripts • 9
resources and deployment • 9
restoring a client application window containing
scripts • 17
Round() • 63
Run-Time Client Script Behavior • 16
S
Sample QuickScript .NET Scripts • 117
Script Editing Styles and Syntax • 7
Script Execution Types • 8
Script Functions • 19
SendKeys() • 72
SetAttributeVT() • 74
SetAttributeVT() script function • 74
SetAttributeVT2() • 74
SetBad() • 75
SetGood() • 75
SetInitializing() • 76
SetUncertain() • 76
Sgn() • 63
Sharing a SQL Connection or Any Other .NET
Object • 122
Shift Left (SHL), Shift Right (SHR) • 107
ShowContent () • 25
ShowGraphic() • 30
ShowHome() Function • 56
ShowLoginDialog() • 39
Shutdown Scripts • 9
SignedAlarmAck() • 77
SignedWrite() • 80
Simple Scripts • 7
Sin() • 63
Sqrt() • 64
Starting a Windows Application • 56
Startup Scripts • 8
String Functions • 85
StringASCII() • 86
StringChar() • 86
StringCompare() • 87
StringCompareNoCase() • 87
StringFromGMTTimeToLocal() • 88
StringFromIntg() • 89
StringFromReal() • 89
StringFromTime() • 90
StringFromTimeLoc al() • 91
StringInString() • 92
StringLeft() • 92
StringLen() • 93
StringLower() • 93
StringMid() • 94
StringReplace() • 94
StringRight() • 95
StringSpace() • 96
StringTest() • 97
StringToIntg() • 97
StringToReal() • 98
StringTrim() • 99
StringUpper() • 99
SwitchDisplayLanguage() Function • 56
AVEVA™ AVEVA Application Server formerly Wonderware Application Server Scripting Guide Index
130
System Functions • 101
system resources, startup scripts • 9
T
Tan() • 64
Text() • 100
timestamps • 69, 74
Trunc() • 65
TRY ... CATCH • 114
TseGetClient Id() Function • 57
TseGetClientNodeName() Function • 57
TseQueryRunningOnClient () Function • 57
TseQueryRunningOnConsole() Function • 57
Types category • 19
Types category, script function • 19
U
Using DDE to Access an Excel Spreadsheet •
122
Using Microsoft Exchange to Send an E-mail
Message • 122
Using Screen-Scraping to Get the Temperature
for a City • 123
Using SMTP to Send an E-mail Message • 123
V
Vista security restrictions • 65
Visual Indication of Script Errors • 17
W
WHILE Loop • 115
Working with QuickScript Editor Features • 10
WriteStatus() • 84
Writing a Text File to Disk • 123
WWControl() • 85
WWDDE Functions • 102
WWExecute() • 102
WWPoke() • 103
WWRequest() • 103
WWStringFromTime() • 100