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This function is used in Python Scripting.


Checks whether or not a tag with a given path exists.

Client Permission Restrictions

This scripting function has no Client Permission restrictions.



  • Parameters

String tagPath - The path of the tag to look up.

  • Returns

boolean - True if a tag exists for the given path, false otherwise.

  • Scope


Code Examples
Code Snippet
# This code would write a 1 to the tag "Compressors/C28/ClearFault" if that tag exists.
if system.tag.exists("Compressors/C28/ClearFault"):
   system.tag.write("Compressors/C28/ClearFault", 1)
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