PM861A Redundancy using Compact Control Builder AC 800M software.
Got questions regarding redundancy with AC800M (PM861A) controllers. In our system, we got two identical CPU's PM861A with two BC810, two CI854A, and on the remote profibus side we have two identical redundant power supplies (SA920S), two CI920AS, and two S900 I/O's. since this is new system that i came across, so need basics on how to connect each other for the redundant system. We have CN1, CN2, COM3 and COM4. Which ports are used for redundancy. ALso, which one do i need to connect to my Laptop? CN1 or CN2 Or CN3..?
Can you please provide the overall structure please.
Any documentation, any sample projects would be really helpful at this time.
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