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This function is used in Python Scripting.


Asynchronously writes values to Tags a the given paths. You must provide a Python callback function that can process the write results.

Client Permission Restrictions

Permission Type: Tag Editing

Client access to this scripting function is blocked to users that do not meet the role/zone requirements for the above permission type. This function is unaffected when run in the Gateway scope.


system.tag.writeAsync(tagPaths, values, callback)

  • Parameters

List tagPaths - A List of Tag paths to write to. If no property is specified in a Tag path, the Value property is assumed.

List values - The values to write to the specified paths.

PyFunction callback - Python callback function to process the write results. The function definition must provide a single argument, which will hold a List of quality codes when the callback function is invoked. The quality codes will hold the result of the write operation for that Tag.

  • Returns


  • Scope

Gateway, Vision Client, Perspective Session

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