PLX32 Product photo

EtherNet/IP to Modbus TCP/IP Communications Gateway


ProSoft Technology’s EtherNet/IP™ to Modbus® TCP/IP communication gateway allows high-speed bi-directional data transfers between Rockwell Automation® PACs and Schneider Electric® PACs. Our Modbus® TCP/IP driver features multiple client and server functionality, for faster data transmission. Two separate Ethernet ports allow each protocol to reside on separate subnets, allowing you to pass data between the two subnets without changing each device’s IP address. In addition, the gateway includes an embedded EDS Add-On Profile, allowing for simplified integration and reduced commissioning time.

A conformal coating option is available for this product.


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Features and Benefits

  • Two separate Ethernet ports allow each protocol to reside on separate subnets. This allows you to pass data between the two subnets without changing each device’s IP address to be on the same subnet.
  • Data prioritization: Multiple I/O connections allow you to set RPIs for status and/or control data.
  • Includes an embedded EDS Add-On Profile, allowing for simplified integration and reduced commissioning time.
  • Gateway includes a SD card slot (SD card optional) for storing configuration files. This can be used for disaster recovery.
  • 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.




Power Supply

24 VDC nominal
10 to 36 VDC allowed
Positive, Negative, GND Terminals

Current Load

24 VDC nominal @ 300 mA
10 to 36 VDC @ 610 mA maximum

Operating Temperature

-25°C to 70°C (-13°F to 158°F)

Storage Temperature

-40°C to 80°C (-40°F to 176°F)

Relative Humidity

5% to 95% RH with no condensation

(H x W x D)

5.38 x 1.99 x 4.38 in
13.67 x 5.05 x 11.13 cm


EIP Protocol Specifications

EIP Protocol Specifications

Protocol Specifications

EtherNet/IP Server

In server mode, the gateway accepts commands from one or more Clients to read/write data stored in the gateway’s internal registers.

Number of Connections


Supported PLC Types

PLC2, PLC5, SLC and ControlLogix file types supported

Internal Database

Data Table File Size: 100 or 1000 words

Data Table File Start: N10 to N109 (based on file size set to 100) or

N10 to N19 (based on file set to 1000)

CIP Services Supported

0x4C - CIP Data Table Read

0x4D - CIP Data Table Write

EtherNet/IP Client

In Client mode, the gateway controls the read/write data transfer between the gateway and other EtherNet/IP devices.

Number of Clients Supported


Command List

Support for 100 commands per Client, each configurable for command type, IP address, register to/from addressing and word/bit count.

Polling of Command List

User-configurable polling of commands, including disabled, continuous and on change of data (write only).

Other Configurable Parameters

Number of Commands (up to 100 per Client)

Min Command Delay

Response Timeout

Retry Count

Command Error Pointer

MBTCP Protocol Specifications

MBTCP Protocol Specifications

Protocol Specifications

Modbus TCP/IP

Modbus Commands Supported

(Client and Server)

1: Read Coil Status

2: Read Input Status

3: Read Holding Registers

4: Read Input Registers

5: Force (Write) Single Coil

6: Preset (Write) Single Holding Register

15: Force (Write) Multiple Coils

16: Preset (Write) Multiple Holding Registers

Configurable Parameters

(Client and Server)

Gateway IP Address

Modbus data type starting address offsets

Floating-point start address and database offset

Configurable Parameters

(Client Only)

Minimum Command Delay

Response Timeout

Retry Count

Command Error Pointer

Command List

Up to 100 fully configurable Client commands

Status Data

Error codes reported individually for each command

Command List Polling

Each command can be individually enabled or disabled; write-only-on-data-change is available


Declaration of Conformity (RoHS/CE) 297.05 kB Last Modified 07/24/2018
EtherNet/IP - Declaration of Conformity 183.48 kB Last Modified 08/01/2018
Korean KC Registration 974.32 kB Last Modified 07/07/2020
Declaration of Conformity (ATEX) 348.50 kB Last Modified 10/28/2019
CB Safety 327.80 kB Last Modified 03/31/2020
UL/cUL; Class 1, Div 2 233.35 kB Last Modified 04/08/2019