I have three A-B plc's, we'll call them PLC A,B and C. PLC A and PLC B are connected together using a modem that is connected to channel 0 on PLC B. PLC A has the message instruction in its program. I used a pair of 1747-aic to connect PLC B and PLC C together thru channel 1. Everything works fine with the AIC connection. I want to add a message instruction to PLC B so in can read some inputs from PLC C. Will adding the message instruction to PLC B cause a problem with the communication between PLC A and PLC B.
SLC Message Instruction Question
- Thread starter cirtcele
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