Technical Reference Manual - InduSoft

Overview of VBScript
• On the Insert tab of the ribbon, in the Task Worksheets group, click Script;
• Right-click the Script folder in the Project Explorer, and then click Insert on the shortcut menu; or
• Click New on the Application menu, click the File tab, and then select Script Worksheet.
To edit an existing Script worksheet, double-click it in the Project Explorer.
Script worksheet
The code configured in each Script worksheet is executed by the Background Task. The project scans
the worksheets sequentially (based on the worksheet number) and executes only the groups in which the
condition configured in the Execution field of the worksheet is TRUE (i.e., non-zero).
Note: You must use the syntax supported by the Built-in Scripting Language in the Execution field.
Only the body of the worksheet supports VBScript.
Variables declared in the worksheet have local scope for that specific group only. They are not available for
any other VBScript interface.
You cannot define procedures (i.e., functions and subs) in the Script worksheet. However, you can call
procedures defined in the Global Procedures or in the Startup Script.
Example:
'Variables available only for this group can be declared here
Dim myVar, myTest
myTest = 1
'The code configured here is executed while the condition configured in the Execution
field is TRUE
myVar = $FindFile("c:\*.txt")
If MyVar > 0 Then
$TagNumOfFiles = myVar
End If
Caution: When any Script worksheet is saved during runtime (on-line configuration), the Startup
Script will be executed again and the current value of the local variables of any Script worksheet will
be reset.
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