ABB COM0034 2RCA023019A0004C

Product Description

The ABB COM0034 2RCA023019A0004C is a communication interface module belonging to ABB’s AC500 series, a flexible and scalable PLC platform widely used in mid-range to high-end industrial automation applications. This specific unit, ABB COM0034 2RCA023019A0004C, is designed to provide multiple communication interfaces, enabling integration with various fieldbus networks, SCADA systems, and enterprise-level information systems.

Engineered with ABB’s commitment to open standards and interoperability, the ABB COM0034 2RCA023019A0004C supports a wide range of industrial communication protocols, including PROFIBUS DP, Modbus RTU, Modbus TCP/IP, and CANopen. The module features a compact form factor that mounts directly onto the AC500 CPU or expansion rack, providing a dedicated communication pathway that offloads network processing from the main processor.

For system integrators and end users requiring flexible connectivity between ABB controllers and diverse field devices—such as drives, HMIs, remote I/O, and sensors—the ABB COM0034 2RCA023019A0004C represents a versatile and reliable solution that simplifies system architecture while ensuring robust data exchange.

Technical Parameters

• Model Number: ABB COM0034 2RCA023019A0004C

• Series: AC500 / AC500-eCo

• Module Type: Communication Gateway / Interface Module

• Supported Protocols:

  • PROFIBUS DP (Master or Slave)

  • Modbus RTU (Master or Slave)

  • Modbus TCP/IP

  • CANopen (Master)

• Communication Ports:

  • 1 x RS-232/RS-485 (configurable, isolated)

  • 1 x Ethernet (10/100 Base-T)

  • 1 x CAN (for CANopen)

• Baud Rate: Up to 12 Mbps (PROFIBUS), up to 115.2 kbps (serial), 10/100 Mbps (Ethernet)

• Isolation: Galvanic isolation between communication ports and backplane

• Mounting: Direct connection to AC500 CPU or expansion rack

• Operating Temperature: -20°C to +60°C

• Status Indication: LED indicators for power, communication activity, and protocol-specific status

• Configuration: Integrated with ABB Automation Builder and Control Builder Plus engineering environments

Advantages & Features

• Multi-Protocol Flexibility: The ABB COM0034 2RCA023019A0004C supports multiple industrial communication protocols within a single module, allowing system integrators to connect a diverse range of field devices without requiring additional hardware. This versatility simplifies system design and reduces spare parts inventory.

• High-Speed Communication: With PROFIBUS DP support at up to 12 Mbps and Ethernet at 100 Mbps, the ABB COM0034 2RCA023019A0004C enables high-speed data exchange between the AC500 controller and distributed networks, ensuring real-time performance for time-critical applications such as motion control and high-speed packaging.

• Seamless Integration: As a native ABB component, the ABB COM0034 2RCA023019A0004C integrates seamlessly with AC500 CPUs and the Automation Builder engineering environment. Configuration of communication parameters, network mapping, and diagnostics are handled within a unified software platform, eliminating the complexity associated with third-party gateways.

• Robust Isolation: The module features galvanic isolation between all communication ports and the controller backplane, protecting the CPU from voltage spikes, ground loops, and electromagnetic interference common in industrial environments.

• Comprehensive Diagnostics: The ABB COM0034 2RCA023019A0004C provides extensive diagnostic information accessible through the engineering environment and operator interfaces. This includes communication status, error counters, and network health monitoring, enabling rapid troubleshooting and reducing mean time to repair (MTTR).

• Compact Footprint: Designed for space-constrained applications, the ABB COM0034 2RCA023019A0004C features a slim profile that minimizes cabinet space while providing full communication capabilities.

Application Cases & Fields

The ABB COM0034 2RCA023019A0004C is deployed across a wide range of industries requiring flexible and reliable communication between ABB controllers and field equipment:

• Factory Automation: Used in assembly lines, packaging machinery, and material handling systems to connect ABB AC500 controllers with distributed I/O, variable frequency drives, and operator interfaces. The ABB COM0034 2RCA023019A0004C provides the communication backbone for coordinated motion and process control.

• Building Automation: Deployed in HVAC systems, lighting control, and energy management applications to integrate ABB controllers with building management systems (BMS) and remote monitoring platforms.

• Water & Wastewater: Installed in pump stations, treatment plants, and distribution networks to connect ABB controllers with SCADA systems, flow meters, and chemical dosing equipment across geographically dispersed facilities.

• Renewable Energy: Utilized in solar tracking systems, wind turbine control, and energy storage applications to interface with inverters, weather stations, and grid monitoring equipment.

• Food & Beverage: Deployed in processing lines, filling machines, and packaging equipment to connect ABB controllers with sensors, actuators, and quality control systems requiring high-speed, reliable communication.

Comparison with Competing Products

When compared to similar communication interface modules from other manufacturers, the ABB COM0034 2RCA023019A0004C offers distinct advantages within its application domain:

• vs. Siemens CP 1243-1 (S7-1200): The Siemens CP series offers Ethernet communication for S7-1200 systems. However, the ABB COM0034 2RCA023019A0004C provides multi-protocol support (PROFIBUS, Modbus, CANopen) within a single module, whereas the Siemens approach typically requires separate modules for different fieldbus protocols. This versatility of the ABB COM0034 2RCA023019A0004C reduces rack space consumption and simplifies configuration.

• vs. Allen-Bradley 1769-SM2 (CompactLogix): The Allen-Bradley 1769-SM2 provides serial communication capabilities for CompactLogix systems. The ABB COM0034 2RCA023019A0004C offers significantly broader protocol support, including PROFIBUS DP master functionality, which is essential for applications requiring high-speed distributed I/O networks. The ABB COM0034 2RCA023019A0004C also provides Ethernet connectivity, eliminating the need for a separate Ethernet module.

• vs. Third-Party Gateways (e.g., Anybus, ProSoft): Third-party gateways offer protocol conversion capabilities but require separate configuration tools and lack native integration with ABB’s engineering environment. The ABB COM0034 2RCA023019A0004C provides system-level integration within Automation Builder, enabling unified configuration, diagnostics, and documentation. This integration reduces engineering time and simplifies long-term maintenance.

Selection Suggestions & Precautions

When selecting the ABB COM0034 2RCA023019A0004C for your system, consider the following:

1. Verify Protocol Requirements: The ABB COM0034 2RCA023019A0004C supports multiple protocols, but specific applications may require particular configurations. Confirm that your specific unit supports the protocol(s) required by your field devices and network architecture. If your application requires PROFINET or EtherNet/IP, consult ABB documentation for alternative module options.

2. Confirm CPU Compatibility: The ABB COM0034 2RCA023019A0004C is designed for the AC500 and AC500-eCo series. Verify compatibility with your specific CPU model and firmware version. Some older CPU revisions may have limitations on communication module support.

3. Network Topology Considerations: When using the ABB COM0034 2RCA023019A0004C with PROFIBUS DP networks, ensure proper network termination, certified cabling, and adherence to maximum segment lengths. Improper termination is a common cause of intermittent communication issues that can be challenging to diagnose.

4. Power Supply Capacity: When adding the ABB COM0034 2RCA023019A0004C to an existing AC500 system, calculate the total current draw of all modules against the capacity of the CPU’s built-in power supply or external power supply module. Overloading can cause unexpected system behavior or communication failures.

5. Firmware and Software Compatibility: When replacing an existing ABB COM0034 2RCA023019A0004C, ensure that the replacement unit has firmware compatible with your CPU and engineering software (Automation Builder or Control Builder Plus). Mismatched firmware may require configuration updates or cause communication errors.

6. Cable Routing and Shielding: For reliable communication, ensure that communication cables connected to the ABB COM0034 2RCA023019A0004C are routed separately from power cables and motor leads. Use properly shielded cables with correct grounding practices to minimize electromagnetic interference, particularly for PROFIBUS and serial communication networks.

7. Configuration and Addressing: Proper configuration of the ABB COM0034 2RCA023019A0004C requires careful attention to network addressing, baud rate settings, and data mapping. Incorrect configuration can result in communication failures or unexpected data values. Always test communication thoroughly before commissioning the full system.

8. Environmental Considerations: Although the ABB COM0034 2RCA023019A0004C is rated for industrial environments, ensure adequate ventilation within the control cabinet. Operating temperatures above the specified range can reduce module lifespan and cause intermittent communication errors.