Description

The ProSoft MVI46-MCM is a high-performance communication module designed to allow Rockwell Automation SLC 500 processors to interface seamlessly with Modbus protocol-compatible devices. Acting as an input/output module between the Modbus network and the Allen-Bradley backplane, it facilitates asynchronous data exchange. The module features a 5000-word register space for efficient data transfer, supporting both Master and Slave configurations across its communication ports.

Features

• Dual-port interface supporting RS-232, RS-422, or RS-485 physical layers.
• Configurable as a Modbus Master or Slave device.
• Supports up to 100 commands per port in Master mode.
• Optimized polling characteristics to manage communication with problematic slave nodes.
• Direct ladder logic control for command execution.
• Single-slot module design for Allen-Bradley 1746 chassis.

Applications

• SCADA system integration and data concentration.
• Pulp and paper mill process control and motor drive management.
• Mining and heavy material handling, including conveyor and crushing equipment.
• Burner and boiler management systems.
• Food and beverage processing, including weigh scales and temperature controllers.
• Automotive manufacturing, including robotic welding and CNC station monitoring.

Technical Specifications

Installation Guidelines

• Ensure the SLC 500 processor is powered down before inserting or removing the module from the chassis.
• The module must be installed in a local or extended I/O rack (0-3) of the SLC 500 system; it does not support remote I/O rack installation.
• Use appropriate shielded cabling for RS-422/485 connections to minimize EMI interference.
• Ensure proper grounding of the chassis to maintain signal integrity.
• Follow standard ESD precautions when handling the module to prevent damage to internal circuitry.

FAQs

What is the MVI46-MCM?

The ProSoft Technology MVI46-MCM is a Modbus Communication Module for Allen-Bradley SLC 500 systems, supporting Master or Slave protocols on two configurable serial ports.

Can the MVI46-MCM be placed in a remote rack?

No, it must reside in the local or extended I/O rack (0-3) of the SLC 500 system.

What is the difference between MVI46-MCM and 3150-MCM?

The MVI46-MCM is a faster, modern module supporting up to 115.2 kbps and 100 commands per port, whereas the 3150-MCM is a legacy version with lower performance specifications.