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The ABB PM554-RP-AC (1SAP120800R0001) is a compact CPU Processor Module designed for the ABB AC500-eCo PLC platform. It combines a central processing unit, integrated I/O, and communication interface into a single compact controller for small to medium industrial automation systems.
It is widely used in machine control, factory automation, and building automation where cost-effective and reliable control is required.
| Parameter | Details |
|---|---|
| Manufacturer | ABB |
| Model | PM554-RP-AC |
| Part Number | 1SAP120800R0001 |
| Product Type | CPU Processor Module |
| System Compatibility | ABB AC500-eCo PLC |
| Function | PLC CPU with integrated control and I/O handling |
| Program Memory | 128 kB |
| Data Memory | 14 kB (system-dependent configuration) |
| Digital Inputs | 8 (24 V DC) |
| Digital Outputs | 6 relay outputs |
| Communication | 1 × RS485 |
| Expansion Capability | Supports AC500-eCo extension modules |
| Power Supply | 100–240 V AC |
| Programming Standard | IEC 61131-3 |
| Diagnostics | LED status indicators |
| Installation Type | DIN rail mounting |
| Dimensions | 74 × 135 × 82 mm |
| Weight | 0.339 kg |
The PM554-RP-AC operates as a standalone PLC controller:
Its scan cycle ensures deterministic execution:
Input → Logic Execution → Output Update → Communication Cycle
Within the ABB AC500-eCo architecture, the PM554-RP-AC functions as:
| Model | Product Type | Key Feature | Application |
|---|---|---|---|
| PM554-RP-AC | CPU Module | AC-powered integrated PLC CPU | Small automation systems |
| PM554-RP | CPU Module | DC-powered version | Flexible industrial control |
| PM564-RP | CPU Module | Higher performance | Medium complexity systems |
| PM573-ETH | CPU Module | Ethernet communication | Networked automation |
Q1: What is the main function of PM554-RP-AC?
It is a compact PLC CPU that executes control programs and manages integrated I/O.
Q2: What is its power supply requirement?
It operates on 100–240 V AC.
Q3: Does it support expansion modules?
Yes, it supports ABB AC500-eCo expansion I/O modules.
Q4: What communication interface does it include?
It includes RS485 communication, typically used for Modbus RTU.
The ABB PM554-RP-AC (1SAP120800R0001) is a compact and efficient PLC CPU module designed for the ABB AC500-eCo platform. With integrated I/O, flexible communication, and reliable real-time processing, it is well suited for industrial machine control, building automation, and small-scale process automation systems.