ABB 1MRB150051R1 Power Supply Module

I. Positioning and Applications

• Series Affiliation: Communication Processor module of ABB AC 500 series PLC, primarily used to expand the network communication capabilities of PLC, enabling data interaction and system integration between different industrial buses and protocols.

• Core Functions: Supports multiple industrial communication protocols (such as Modbus, CANopen, EtherNet/IP, etc.), and can communicate with third-party devices (such as sensors, frequency converters, and host computers) as a master or slave station. It is suitable for cross-protocol data transmission, distributed system networking, and remote monitoring scenarios.

II. Technical Parameters and Characteristics

Communication Interfaces and Protocols

• Interface Types:

• 2 RJ45 Ethernet interfaces (supporting EtherNet/IP, Modbus TCP, Profinet, etc., subject to the version);

• 1 RS-485/RS-232 serial port (supporting Modbus RTU, ASCII protocols);

• 1 CANopen interface (optional, for connecting fieldbus devices).

• Protocol Support:

• Industrial Ethernet: EtherNet/IP, Modbus TCP, EtherCAT (for some models);

• Fieldbus: CANopen, Modbus RTU;

• Custom protocols: Supports free-port communication via programming configuration.

Performance Parameters

• Data Transmission Rate:

• Ethernet: 10/100Mbps adaptive;

• Serial port: 1200bps~115.2kbps adjustable;

• CANopen: Up to 1Mbps.

• Connection Count: Supports simultaneous communication with more than 16 slave devices, depending on the protocol load.

• Real-time Performance: Communication cycle ≤1ms (Ethernet protocol), suitable for high-speed data interaction scenarios.

Electrical and Environmental Characteristics

• Power Supply: 24VDC (±20%), power consumption ≤8W;

• Isolation: Electrical isolation between interfaces and power supply (1500V AC/1min), with strong anti-interference capability;

• Mounting Method: 35mm DIN rail mounting, supports vertical/horizontal installation;

• Operating Temperature: -25°C~+60°C, humidity 5%~95% (non-condensing).

III. Application Scenarios

Cross-Protocol System Integration

• Connecting Modbus devices (such as intelligent instruments) with EtherNet/IP networks to achieve data protocol conversion;

• Integrating third-party frequency converters (CANopen interfaces) with AC 500 PLC systems.

Remote Monitoring and Networking

• Communicating with SCADA systems (such as Wonderware, WinCC) via Ethernet interfaces to upload device status data;

• Building a distributed IO network as a master station, connecting remote IO modules (such as ABB 500I/O series).

Special Industry Applications

• Manufacturing: Protocol adaptation for multi-brand devices (such as Siemens, Schneider) in automated production lines;

• Power: Connecting relay protection devices (Modbus protocol) with PLC control systems;

• Logistics: Communicating with servo drives (EtherNet/IP) to achieve speed synchronization control of conveyor lines.

IV. Interfaces and Wiring

Hardware Interface Layout

• Ethernet Interfaces: Labeled as ETH1/ETH2, supporting redundant network connections (such as ring topology);

• Serial Port: DB9 interface, supporting RS-485 (half-duplex) or RS-232 (full-duplex), requiring mode selection via jumpers;

• CANopen Interface: 9-pin D-type interface, including power supply and data positive/negative lines (CAN_H/CAN_L).

Typical Wiring Example (Modbus RTU Slave)

• RS-485 Wiring:

• Module TXD+ connected to bus A terminal, TXD- connected to bus B terminal;

• Terminal resistors (120Ω) connected to both ends of the bus.

V. Configuration and Debugging

Software Tools

• Using ABB Control Builder AC 500 for configuration, enabling settings for:

• Communication protocol type, baud rate, data bits, parity bit (for serial port);

• Ethernet IP address, subnet mask, gateway;

• Slave device address mapping table (such as associating Modbus register addresses with PLC variables).

• Supports customizing communication logic through programming (such as ST, LD languages) to achieve data filtering or protocol conversion.

Status Diagnosis

• Indicator Lights:

• Power (green): Lights up when power is normal;

• ETH1/ETH2 (green/yellow): Ethernet connection (green) and data transmission (yellow) status;

• COM (yellow): Flashes during serial communication activity;

• Error (red): Lights up in case of communication failures (such as timeouts, protocol errors).

• Fault Troubleshooting: View communication logs through Control Builder to locate issues such as packet loss and parity errors.

VI. Comparison with Similar Modules (vs. 500CMP02, 500CMP03)