ProSoft MVI56-MNET ControlLogix Modbus TCP/IP Client Server Ethernet Module Inquiry Product

Keywords:modbus tcp ip,ethernet communication,industrial gateway

Product Details

The ProSoft MVI56-MNET is an original single-slot Modbus TCP/IP communication module designed for Rockwell 1756 ControlLogix chassis. It provides reliable Modbus TCP client and server functions to bridge ControlLogix PAC with Modbus TCP compatible devices including remote PLCs, pressure transmitters, flow meters, power monitors and other industrial Ethernet instruments. As a Modbus TCP client, it establishes multiple TCP connections to read and write holding registers, input registers, discrete inputs and coils from remote Modbus servers. As a Modbus TCP server, it accepts connection requests from SCADA, HMI and other master systems to access the tag data of ControlLogix processor. The configurable internal 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 for Modbus communication and module configuration. The data exchange between the module and ControlLogix processor runs asynchronously over the backplane, so Modbus polling and response processing will not occupy the controller scan time and disturb real-time control logic. This module is the predecessor version of MVI56E-MNET, and it can be replaced by the enhanced MVI56E-MNET model directly. Add-on instructions and sample ladder logic are provided for RSLogix 5000, and ProSoft Configuration Builder software is used to edit connection lists, register mapping and communication 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. Front LED indicators show module status, network link and fault information for fast on-site inspection and troubleshooting. The operating temperature range is 0°C to 60°C, with industrial EMC protection against surge and electrostatic interference, and meets shock and vibration standards for general industrial automation sites. It supports configuration backup and firmware upgrade for routine maintenance.

This classic Modbus TCP Ethernet module is widely used in water treatment, petrochemical, energy monitoring, factory automation and building control network interconnection projects. It brings native Modbus TCP/IP connectivity to ControlLogix without deploying extra standalone protocol gateways, simplifying cabinet layout and industrial Ethernet networking. As a discontinued legacy communication module, the MVI56-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.