- Model: MVI56-MNETCR
- Brand: ProSoft Technology
- Series: MVI56 Ethernet Communication Modules
- Core Function: Modbus TCP/IP client interface with reduced data block
- Type: PLC Ethernet Communication Module
- Key Specs: Single-slot 1756 backplane, 10/100 Mbps RJ45, up to ~30 clients
Product Introduction
Spec-led insight: ProSoft MVI56-MNETCR is an in-chassis Modbus TCP/IP client communication module for Allen-Bradley ControlLogix systems. It uses a reduced I/O data block to conserve backplane bandwidth in remote racks, making it suitable where ControlNet or EtherNet/IP links feed a remote chassis.
This module supports up to ~30 client connections over 10/100 Mbps Ethernet, maps user-definable registers into the PLC data image, and integrates with RSLogix 5000 via Add-On Instructions. Confirm your PLC family and Modbus function requirements against the OEM manual before deployment.
Key Selling Points & Differentiators
- Supports up to ~30 Modbus TCP client sessions, useful for polling multiple server devices from a single module.
- Reduced data block design minimizes backplane data image size — advantageous in remote chassis over ControlNet/EtherNet/IP bridges.
- Backplane-powered, single-slot fit into 1756 ControlLogix racks with RJ45 10/100 Mbps Ethernet.
- Tested functional before shipment; LED diagnostics and test report available on request.
- Not recommended for pure server (slave)-only roles; use client modules where PLC initiates queries.
- Configuration via ProSoft Configuration Builder and ProSoft Discovery Service; supports AOIs for integration in RSLogix 5000.
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