Noticed CN2 -CN2 is communicating. While removing a CN2 cable, the communication break. CN2 IP address are added to the IAC communication variable But the communication breaks while removing the CN1 Cable also ! How come ?
In My actual application, there is no Switch for CN1 and No switch for CN2. that is PLC1 CN1 (172.16.80.111)-> Process Panel 1( PP874) PLC2 CN1 (172.16.80.112) -> Process Panel 2( PP874) & CN2 <-> CN2 directly .
Can anyone let me know why the Communication breaks on removing CN1 cable even though the communication is on CN2 ! ? Please share your thoughts please.