ABB CM574-RS 1SAP170400R0201 Communication Module

Product Overview

The ABB CM574-RS 1SAP170400R0201 Communication Module is a high-performance serial communication interface designed to extend the communication capabilities of ABB AC500 series PLC systems. The CM574-RS module provides two serial ports (RS-232/RS-485/RS-422) that allow seamless integration of third-party serial devices — such as drives, barcode scanners, operator panels, sensors, and legacy equipment — into modern automation environments.

This compact yet powerful module offers flexibility for a wide range of industrial communication protocols, including Modbus RTU/ASCII, free ASCII, and user-defined protocols. Designed for rugged and industrial-grade environments, the CM574-RS is an ideal solution for enhancing communication options within machine automation, process control, and factory automation systems.

Engineered by ABB, one of the global leaders in automation and electrification, the CM574-RS meets high standards for reliability, ease of integration, and long service life. Its compact DIN-rail mounting and compatibility with ABB AC500 CPUs ensure a smooth setup and a consistent communication backbone for complex automation networks.

Product Specifications

Applications

The ABB CM574-RS Communication Module is a flexible tool for enabling serial communication across various industrial automation platforms:

• Factory Automation
  Integrating legacy RS-232/RS-485 equipment into new control architectures.

• Machine Automation
  Communication with drives, operator panels, barcode scanners, RFID readers.

• Building Automation
  Serial communication with HVAC controllers, energy meters.

• Oil & Gas
  Monitoring and control of remote pipeline instruments, serial SCADA devices.

• Water & Wastewater
  Linking flow meters, analyzers, and instrumentation into centralized SCADA systems.

• Transportation
  Railways, airport baggage systems, vehicle control systems.

• Renewable Energy
  Communication with inverters, data loggers, and weather stations.

Product Advantages

• Flexible Protocol Support
  Supports Modbus RTU/ASCII and user-defined serial protocols, allowing integration with a wide range of devices.

• Dual Port Interface
  Offers two serial ports that can be independently configured (RS-232/485/422).

• High Reliability
  Galvanic isolation protects both module and PLC from voltage surges and ground loops.

• Compact Design
  Slim 45 mm width fits easily into crowded control cabinets.

• Global Certifications
  CE and UL approvals ensure compliance with international standards.

• User-Friendly Diagnostics
  LED indicators for TX, RX, and module status simplify troubleshooting.

• Industrial Hardened
  Designed for operation in demanding environments with wide temperature range and high EMC immunity.

• Seamless Integration
  Fully compatible with ABB AC500 CPU series, supported by ABB Automation Builder engineering suite.

• High MTBF
  Designed for over 600,000 hours of operational life — reduces maintenance needs.

• Future-Proof
  Helps extend life of legacy equipment by connecting older serial devices to modern PLC platforms.

Frequently Asked Questions (FAQ)

1. How many serial ports does the CM574-RS module provide?
   It offers two independently configurable ports (RS-232/RS-485/RS-422).

2. Is this module compatible with non-ABB devices?
   Yes, it is commonly used to communicate with 3rd-party devices such as drives, meters, and sensors.

3. Does it support Modbus RTU?
   Yes, Modbus RTU/ASCII is natively supported.

4. Can I use different baud rates on the two ports?
   Yes, each port can be configured independently.

5. Does this module support hot-swapping?
   No, changes require a power cycle of the PLC system.

6. What level of isolation is provided?
   500 V galvanic isolation is provided between field and control circuits.

7. Is it suitable for outdoor installation?
   It is designed for indoor industrial environments. For outdoor use, proper enclosures should be used.

8. What software is used to configure the CM574-RS?
   ABB Automation Builder software is used for configuration and programming.

9. Does it support user-defined protocols?
   Yes, the module can be programmed to handle custom ASCII-based protocols.

10. Can it be used in redundant PLC architectures?
    The CM574-RS module itself does not offer built-in redundancy, but can be used within redundant AC500 PLC systems.

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