Greetings,
I have had a system working for a few years writing/reading from a ControlLogix PLC (1756-L73 and 1756-EN2T). I can't thank the contributors and everyone involved enough.
On a Windows Server 2019 VM that can never reach the internet:
Node Red V2.2.2
Node.js V 16.14.0
Recently, the amount of data required to and from an additional CompactLogix PLC (L306ER) has grown and the complexity of what the boss needs has gotten more complex, so I wanted to stop messaging to/from the ControlLogix PLC, using it as a data concentrator and have Node-Red communicate directly to the CompactLogix PLC (in my case, PLCs are on the same subnet).
Has anyone successfully used node-red-contrib-cip-ethernet-ip or node-red-contrib-cip-st-ethernet-ip using multiple endpoints.
When I tried adding the endpoint for the CompactLogix PLC, I lost connection to the ControlLogix PLC and I don't remember now if I ever tried to just have the CompactLogix PLC without the ControlLogix endpoint enabled. I currently have the ControlLogix endpoint reading over 1000 tags and writing a few. I also have UDP messages to/from the same ControlLogix PLC to handle some Strings. When I put this in, node-red-contrib-cip-st-ethernet-ip wasn't available. I also use Node-Red to send "RAW" data (over TCP/IP) to a label printer on the same network but routed to a different subnet.
Also, please let me know if there is a better way to pose or classify my question.
