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The ABB PM554-RP-AC 1SAP120800R0001 is a ac500-eco processor module for ABB AC500-eCo PLC systems. It is used to execute PLC logic and provide integrated digital I/O and serial communication. The ABB PM554-RP-AC 1SAP120800R0001 is identified by its complete ordering code and documented hardware function. Confirm the installed system, module revision, connector arrangement and supported interface before replacement. Install the ABB PM554-RP-AC 1SAP120800R0001 only in the approved AC500-eCo controller assembly. Follow the manufacturer's system documentation for power isolation, grounding, wiring, configuration and commissioning.
This PM554-RP-AC processor executes PLC logic with the documented digital I/O and RS485 interface.
Confirm the 100–240 V AC supply, product identity, I/O arrangement and AC500-eCo platform before replacement.
Back up the program, isolate the panel, restore the processor and test logic, I/O and serial communication.
Carry out a visual and mechanical inspection of PM554-RP-AC 1SAP120800R0001. Preserve photographs of the identification and interfaces and confirm Program memory: 128 kB as well as Digital inputs: 8 inputs.
Before handover, reconcile Relay outputs: 6 outputs and Power supply: 100–240 V AC with the work order. Then verify connector locking, operator controls, communication and the applicable emergency-stop circuit and document the outcome for future replacement work.