So analyse RS485 communication to PLC's, to see if the signal is valid
neil Jul 11, 2018
I'm currently monitoring the RS485 comms at the UART level, before it goes into my RS485 level translator successfully. Its way COOL and amazingly helpful. I do all my packet level timing verification this way.
While there is a packet level format - I think the decoding is largely manufacturer specific, and I'm not using a PLC.