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ProSoft Technology’s EtherNet/IP™ to Modbus® TCP/IP communication gateway allows high-speed bi-directional data transfers between EtherNet/IP™ enabled controllers or devices and Modbus® TCP/IP controllers or devices.

Our Modbus® TCP/IP driver features multiple client and server functionality, for faster data transmission. In addition, the gateway includes several features, including data prioritization, that allow for simplified integration, reduced commissioning time and optimized performance.

ProSoft PLX31-EIP-MBTCP EtherNet/IP to Modbus TCP/IP Gateway


Power Supply
24 Vdc nominal
10Vdc to 36 Vdc allowed
Positive, Negative, GND Terminals
Current Load
24 Vdc nominal @ 300mA
10 to 36 Vdc @ 610mA maximum
Operating Temperature
-25°C to 70°C (-13°F to 158°F )
Relative Humidity
5% to 95% RH with no condensation
Dimensions (Height x Width x Depth)
Standard: 5.38 in x 1.99 in x 4.38 in (13.67 cm x 5.05 cm x 11.13 cm)
Ethernet Port
10/100 Base-T half-duplex RJ45 Connector
Serial Port(S)
Note: The number of serial communication ports depends on the gateway type, and the combination of protocols.


  • Data prioritization: Multiple I/O connections allow you to set RPIs for status and/or control data, optimizing Ethernet bandwidth.
  • Includes an embedded EDS Add-On Profile, allowing for simplified integration and reduced commissioning time.
  • Includes a SD card slot (SD card optional) for storing configuration files. This can be used for disaster recovery.
  • ProSoft Discovery Service: This utility allows your PC to see the gateway and change its default IP address without being on the same subnet.
  • Secure module configuration via module switch (v1.04 and greater).
  • Up to 4000 16-bit registers can be used to exchange large amounts of data.