1SAP170400R0001
May 19, 2026

1SAP170400R0001

SAP170400R0001 (ABB CM574-RS Serial Communication Module) Brand ABB - Swiss brand of the ABB Group, an industrial automation company Model number Full part number 1SAP170400R0001, commonly referred to as CM574-RS, AC500 RS232/485 communication module Category PLC Communication Expansion Module, compatible with ABB AC500 medium-sized PLC platform Alternative names CM574 Serial Port Module, AC500 CM574-RS Communication Controller, Dual Serial Port Expansion Module

Description

Basic Information

Compatible with AC500 series PLC (such as PM591/PM592 and others), dual serial ports with configurable RS-232/RS-485/RS-422 interfaces, interface type: terminal block + DB9. Module size: 62×135×28 mm, weight approximately 0.095 kg. Origin: Sweden. Operating temperature: 0℃ to + 60℃. Storage temperature: -40℃ to + 70℃. Factory 12-month warranty.

Function and positioning

AC500 system-specific serial communication expansion module, used for connecting serial devices (frequency converters, instruments, HMIs, scanning guns), to achieve Modbus-RTU/ASCII or custom free port communication. Dual ports are independently configurable. It expands PLC serial port resources, suitable for networking and data collection of small and medium-sized automation system equipment.

Core performance parameters

Communication interface: 2 independent serial ports (RS-232/RS-485/RS-422 can be configured by software), port 1 terminal block, port 2 DB9. Supports protocols Modbus-RTU, Modbus-ASCII, free ASCII, user-defined protocol. Baud rate: 1200bps to 115.2kbps. Backplane power supply: 24VDC. Integrated diagnostic LED indicator. Supports hot swapping. Configuration software: ABB Automation Builder.

General adapter accessories

Compatible with AC500 series CPUs (PM591, PM592, etc.), S500 series I/O modules, serial devices (frequency converters, servo, instruments, HMIs), dedicated FBP bus baseboard, RS-232/485 communication cables and connectors.

Applicable equipment fields

Widely used in manufacturing assembly lines, packaging machinery, water treatment, energy, HVAC, building automation and other industries. Suitable for control systems that require serial communication, equipment networking, instrument data collection, frequency converter control and HMI interaction scenarios.


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