3150-MCM | ProSoft Modbus Master/Slave Communications Module for SLC 500

Product Overview

The ProSoft 3150-MCM is a Modbus Master/Slave Communication Module designed for the Allen-Bradley SLC 500 processor platform. It enables SLC 500 processors to communicate with Modbus RTU/ASCII devices as either a master or slave, providing seamless integration of Modbus-compatible field devices into Rockwell Automation control systems. The 3150-MCM is ideal for SCADA systems, remote monitoring, and distributed control applications requiring Modbus connectivity.

Key Technical Specifications

• Product Type: Modbus Master/Slave Communication Module
• Series: ProSoft 3150
• Platform: Allen-Bradley SLC 500
• Serial Ports: 2 × RS-232 (DB9 female)
• Protocol Support: Modbus RTU, Modbus ASCII
• Baud Rate: 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
• Data Bits: 7 or 8
• Parity: None, Odd, Even
• Stop Bits: 1 or 2
• Backplane: 1746 SLC 500 rack
• Power Consumption: 3.5W @ 5.1V DC
• Operating Temperature: 0°C to +55°C
• LED Indicators: PWR, OK, TX, RX, PORT1, PORT2
• Configuration Software: ProSoft Configuration Builder v3.x or higher
• Origin: USA

Key Features

• Dual Serial Ports: Two RS-232 ports configurable as Master or Slave
• Flexible Baud Rates: Supports 300 bps to 115.2 kbps
• SLC 500 Integration: Direct backplane connection to SLC 500 processors
• SCADA Ready: Ideal for remote monitoring and telemetry applications
• Easy Configuration: ProSoft Configuration Builder for quick setup

Applications

• Water/wastewater SCADA systems
• Remote pump station monitoring
• Tank level monitoring systems
• Industrial telemetry applications
• SLC 500 to Modbus device integration

Installation Guide

1. Install in 1746 SLC 500 rack
2. Connect RS-232 serial cables to Port 1 and/or Port 2
3. Configure baud rate, parity, and protocol via ProSoft Configuration Builder
4. Set Master/Slave mode per port
5. Map Modbus data to SLC 500 data files
6. Verify communication via LED status indicators

FAQ

Q: What SLC 500 processors are compatible?
A: Compatible with SLC 5/03, SLC 5/04, and SLC 5/05 processors.

Q: What is the maximum baud rate?
A: 115,200 bps.

Model Selection Tips

• 3150-MCM = Modbus for SLC 500
• For SLC 500 with Modbus TCP/IP, consider MVI69L-MBTCP
• For ControlLogix Modbus, use MVI56-MCM or MVI56E-MCM