Hi there,
I’m trying to flag potential disconnections between a PLC and an edge device, is it possible?
I’m using the ALLEN-BRADLEY: READ node and get a workflow error in case of disconnection:
If the workflow is halting execution and throwing an error, you actually can trigger off of that, using the Workflow Error Trigger.
Using this trigger will fire a workflow whenever any uncaught exception occurs. So I would put this trigger in the same workflow that is doing your read of the Allen-Bradley device and, based on the unique information thrown when the timeout occurs, take some sort of action in that separate workflow run. For example, you may want to publish a message on a custom MQTT topic that you’re listening to in an application workflow, and on receipt of a message, you can log an event or alert yourself some other way.
