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​
| Type | Parameter | Description |
|---|---|---|
| String | tagPath | The 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)
Keywords​
system tag exists, tag.exists