Technical Reference Manual - InduSoft

Appendix: Built-in Scripting Language
ForceTagChange
Forces the database to write a value to a tag and act as if it were a tag change even if the new value is equal to
the old value.
Function Group Execution Windows Embedded Thin Client
ForceTagChange Tags Database Synchronous Supported Supported Supported
Syntax
ForceTagChange( "strTagName", numValue )
strTagName
numValue
The name of the tag being forced to accept the new value.
Note: The tag name must be enclosed in quotes, as shown in the syntax
diagram, or else the project will try to get the value of the named tag.
The new value to be written to the specified tag.
Returned value
This function does not return any value.
Examples
Tag Name
Expression
n/a ForceTagChange( "TagA", 5 )
GetTagValue
Gets the value of the specified tag from the project tags database.
Function Group Execution Windows Embedded Thin Client
GetTagValue Tags Database Synchronous Supported Supported Supported
Syntax
GetTagValue( "strTagName", optNumRefresh )
strTagName
The name of the tag of which you want to get the value.
optNumRefresh
Note: The tag name must be enclosed in quotes, as shown in the syntax
diagram, or else the project will try to get the value of the named tag.
Tag that you want to use as a trigger to refresh the function. When the value of the specified Tag
changes, the function is executed again. (Normally, a function executes only when the object
on which it is configured changes in some way, such as when a Pushbutton object is clicked.)
To execute the function at a regular interval, you can use one of project's system tags such as
Second, Minute or Hour.
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