The power supply in slot x of the first slot. Provide redundant PS configuration. Slot 0-9/0-16 in the controller chassis with FTEB (Fault Tolerant Ethernet/Control Network Interface) is the first module by default, and redundant modules must be located in the same slot of the redundant chassis. The FO (fiber optic) redundant links on RM (redundant module) do not allow I/O on the redundant controller chassis, except for the FIMs&IOLIMs (IO link interface modules) I/O. Non redundant controller chassis allow I/O on the unique MAC IDs of CNI on the process network and monitoring network. Except for redundant modules, there is no replication on a single (uplink or downlink) network. The maximum value of 64 IO cards (chassis i/PM IO) does not support redundancy in the “A” series I/O (chassis I/O), and each CNI supports 24 I/O modules. Each controller has 4 CNIs. The CNI MAC IDs for the uplink and downlink CNI of the redundant controller are set to be the same. By default, based on software configuration server addresses 23- “A” and 24- “B”, it is assumed that the base address of the backup controller is+1. If the ACEnode is located in the north of CNI, the address of the ACEnode should be 24, and the addresses of the servers should be 31 and 32, respectively. PS output is 24V, 3V, 5V, 1.2V pulse input, not supported. I/O redundancy is only allowed on series “A” I/O according to xPM I/O redundancy SIM, as a serial input processor. Only PIM on the “A” series I/O, as a pulse input module

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