Our Commitment to You During COVID-19 Click here

Modbus TCP/IP Client Server Network Interface Module for SLC


Discontinued: No new product for sale. More Info
Recommended replacements: PLX31-EIP-MBTCP

Check here to learn more about our Legacy Product Replacement Plan

The MVI46 Modbus TCP/IP Network Interface Module is designed to allow SLC processors to interface easily with other Modbus TCP/IP protocol-compatible devices using client and server functionality.

Compatible devices include not only Modicon processors (which support the Modbus TCP/IP protocol) but also a wide assortment of other clients and server devices.

Features and Benefits

The MVI46-MNET module is a single slot solution that provides a powerful connection between Rockwell Automation's SLC processor and Modbus TCP/IP network applications.

The TCP/IP Modbus network applications include those networks hosted by Modicon Quantum processors, networks controlled by operator interface software applications, and the growing number of manufactured devices that support this protocol. The module acts as an input/output module between the Modbus TCP/IP network and the SLC backplane. The data transfer from the processor is asynchronous from the actions on the Modbus TCP/IP network. A 5000-word register space in the module exchanges data between the processor and the Modbus TCP/IP network.


With the growing trend of Ethernet technology in the industrial marketplace, this product has a wide variety of application uses.

  • Food processing
  • Petrochemical
  • Pulp and paper
  • Automobile manufacturing
  • Water and Wastewater
  • Oil and Gas
  • Power and Electric
  • Support for the storage and transfer of up to 5000 registers to/from the SLC processor using M0/M1 data file transfer
  • User-definable module memory usage
  • 10/100 Base-T Ethernet compatible interface
  • Configurable parameters for the client and server applications and floating point support




Backplane Current Load

800 mA @ 5.1 VDC

Operating Temperature

32° F to 140° F (0° C to 60° C)

Storage Temperature

-40° F to 185° F (-40° C to 85° C)

Relative Humidity

5% to 95% (without condensation)


30 g operational, 50 g non-operational


5 g from 10 to 150 Hz


Compatible with Rockwell Automation SLC 5/02 M0/M1 capable processors or newer

LED indicators

Module status, Backplane transfer status, Application status, Serial activity (debug port), Ethernet link and activity, and error LED status

Debug/Configuration port (CFG)

CFG Port (CFG)

RJ45 (DB-9M with supplied cable)
RS-232 only
No hardware handshaking

Configuration Connector

RJ45 RS‑232 Connector (RJ45 to DB-9 cable shipped with unit)

Application Ports

Ethernet Port (Ethernet Modules)

RJ45 Connector
Link and activity LED indicators

Electrical Isolation 1500 V rms at 50 Hz to 60 Hz for 60 seconds, applied as specified in section 5.3.2 of IEC 60950: 1991

Ethernet Broadcast Storm Resiliency = less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration



Declaration of Conformity (RoHS/CE) 300.99 kB Last Modified 03/04/2018
Country Approval - Russia - EAC Declaration (Wired) 1.92 MB Last Modified 01/07/2020
Korean KC Registration 579.61 kB Last Modified 03/13/2020
UL/cUL; Class 1, Div 2 1.12 MB Last Modified 02/27/2019
UL/cUL; Class 1, Div 2 (Canada) 1.14 MB Last Modified 02/27/2019