Mark Snodgrass
Member
When communicating between different PLCs using the messaging instruction, is it better to have PLC 'A' read from PLC 'B', or have PLC 'B' write to PLC 'A'?
I am in the process of trying to eliminate all of our old DH+ comms (via global status words) and put all the messaging on ethernet. I was just wondering what you guys thought, and if anyone has experienced problems going one way or the other. Its probably just stylistic, but I would still like to hear you views on the subject.
I am in the process of trying to eliminate all of our old DH+ comms (via global status words) and put all the messaging on ethernet. I was just wondering what you guys thought, and if anyone has experienced problems going one way or the other. Its probably just stylistic, but I would still like to hear you views on the subject.