PLC to PLC communication

[Govind Lathkar 0]

Dear All I have 4 no Q06 CPU. I wnat to share data to each other. for that I have taken QJ71BR11 to form PLC to PLC N/W For this I have assign PLC 1 as control station and PLC 2,3,4 as Normal station. What will happen if PLC 1 ( Control station ) is not powered on. Is rest or PLC( PLC 2 ,3,4 ) will communicate with each other Regards Govind L. Lathkar

[Crossbow 295]

The network will not exist without a master. However you could assign one of the other PLCs as a standby master. That way if the main master goes down for any reason the standby master will run the network. Check the manuals on the QJ71BR11 for how to set this up.