Configure a change event

Trigger methods if the value of a variable or object property changes.

Tip: If you use a controller tag in a change event, the tag always updates at runtime, even if the FactoryTalk Optix Application does not display the tag value.
  1. In Project view, select an object or a variable.
  2. In Properties, right-click a variable or a property and select New > Changed event.
    Tip: If needed, select Add to add a variable.
  3. In Events, next to VariableChanged, select Add.
  4. Select a method:
    • For global methods, expand Commands.
    • For local methods, expand the nodes that expose methods (for example, a DataGrid node exposes a Refresh method), or expand the node related to a specific NetLogic.
  5. (optional) If the method requires arguments, expand the method and set arguments.
  6. (optional) Select more methods by repeating 3 through 5.