ProSoft MVI56E-MNETR Modbus TCP/IP Server Communication Module

Product Overview

The ProSoft MVI56E-MNETR is a Modbus TCP/IP Server Communication Module optimized for remote rack installations in Rockwell Automation ControlLogix systems. It features a single Ethernet port and provides Modbus TCP/IP Server (Slave) functionality, allowing external Modbus TCP/IP clients to read from and write to ControlLogix data tables. The MVI56E-MNETR uses a compact data block approach to minimize backplane bandwidth usage, making it ideal for remote I/O applications.

Key Technical Specifications

• Product Type: Modbus TCP/IP Server Communication Module (Remote Optimized)
• Series: ProSoft MVI56E
• Platform: Allen-Bradley ControlLogix
• Ethernet Port: 1 × 10/100 Mbps RJ45
• Protocol Support: Modbus TCP/IP Server (Slave)
• Data Block: Compact data block for remote rack optimization
• Backplane: 1756 ControlLogix (local or remote rack)
• Configuration Software: ProSoft Configuration Builder (PCB)
• Backward Compatibility: Compatible with MVI56-MNET
• Origin: USA

Key Features

• Remote Rack Optimized: Compact data block minimizes backplane bandwidth
• Modbus TCP/IP Server: Responds to client read/write requests
• Single Ethernet Port: 10/100 Mbps for network connectivity
• ControlLogix Integration: Data mapped to processor tags
• Backward Compatible: Drop-in replacement for MVI56-MNET

Applications

• Remote rack Modbus TCP/IP server applications
• SCADA systems reading ControlLogix data via Modbus TCP/IP
• DCS integration with Modbus TCP/IP protocol
• Bandwidth-constrained remote I/O networks

Installation Guide

1. Install in 1756 ControlLogix slot (local or remote rack)
2. Connect Ethernet cable to RJ45 port
3. Configure IP address and Modbus parameters via PCB
4. Map ControlLogix data to Modbus registers
5. Verify client connectivity

FAQ

Q: What is the difference between MVI56E-MNETR and MVI56E-MNETC?
A: MNETR is Server (Slave) only, optimized for remote racks; MNETC is Client/Server.

Q: Does it require AOI for remote racks?
A> Yes, use the provided AOI to read compact data blocks in ladder logic.

Model Selection Tips

• MVI56E-MNETR = Modbus TCP/IP Server for remote racks
• For Client/Server functionality, use MVI56E-MNETC
• For serial Modbus, use MVI56E-MCM