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Version: 8.1

system.tag.exists

This function is used in Python Scripting.

Description​

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

Client Permission Restrictions​

This scripting function has no Client Permission restrictions.

Syntax​

system.tag.exists(tagPath)

Parameters​

TypeParameterDescription
StringtagPathThe path of the tag to look up.

Returns​

Boolean - True if a Tag exists for the given path, false otherwise.

Scope​

Gateway, Vision Client, Perspective Session

Code Examples​

Example #1
# 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)