Hi, Guys,
I am new to node-red need help on the usage of node-red-contrib-s7. What I am trying to do is with a trigger or event, the node will read a variable from a PLC endpoint(setup via S7_Control node). Whatever I setup it with Trigger Read or Cycle, what I got from the Debug node connected to the S7_In node works periodically...
How I can just read once when triggered?
Thanks,
David
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