Product Details

The ProSoft MVI56E-MNET is a single-slot enhanced Modbus TCP/IP communication module designed for Rockwell 1756 ControlLogix chassis. It supports both Modbus TCP/IP client and server functions simultaneously, helping ControlLogix PAC exchange data with Modbus TCP compatible controllers, transmitters, flow meters, power meters and other industrial Ethernet devices. As a Modbus TCP client, it can establish up to 30 independent connections to read and write register data from multiple remote Modbus servers. As a Modbus TCP server, it accepts connection requests from remote SCADA, HMI and other master hosts, and provides access to ControlLogix tag data. The internal user-configurable database supports up to 5000 16-bit registers for flexible data mapping between Modbus network and controller tags. It is equipped with one 10/100Mbps auto-crossover RJ45 Ethernet port, built-in web server and CIPconnect technology, supporting remote configuration, online diagnosis and firmware upgrade through EtherNet/IP or ControlNet network. The data exchange between the module and ControlLogix processor runs asynchronously over the backplane, so Modbus TCP polling and data response will not occupy controller scan time and disturb real-time control logic. This module is fully backward compatible with the older MVI56-MNET, so users can replace the legacy module directly without rewriting the original control program. Add-on instructions and sample ladder logic are provided for RSLogix 5000 and Studio 5000, and ProSoft Configuration Builder software is used to edit connection lists, register mapping and network parameters.

This module can be installed in local or remote 1756 ControlLogix chassis and draws 800mA at 5VDC from the backplane. It supports hot-swappable operation for on-site replacement without shutting down the whole rack. The front panel has a 4-character scrolling alphanumeric LED display to show IP address, port status and fault information for fast on-site inspection and troubleshooting. It supports CF personality card to store complete configuration files, which supports quick recovery and spare module swap. The standard MVI56E-MNET has an operating temperature range of 0°C to 60°C, and it adopts industrial EMC protection against surge and electrostatic interference, meeting shock and vibration standards for industrial automation sites. It supports configuration backup and remote firmware upgrade to reduce maintenance workload.

This Modbus TCP Ethernet communication module is widely used in water treatment, petrochemical, energy monitoring, building automation and factory network interconnection projects. It adds native Modbus TCP/IP connectivity to ControlLogix without deploying extra standalone protocol gateways, simplifying cabinet layout and industrial Ethernet networking. As a discontinued legacy module, the MVI56E-MNET is mainly supplied as spare replacement parts for running automation systems. It maintains stable bidirectional Modbus TCP/IP data transmission, preserves the original field instruments and network wiring, and reduces the transformation cost of heterogeneous Ethernet device integration.