PLX32 Product photo

Modbus® TCP/IP to Siemens® Industrial Ethernet Communication Gateway


ProSoft Technology’s Modbus® TCP/IP to Siemens Industrial Ethernet gateway allows high speed bi-directional data transfers between Schneider Electric® PACs and Siemens S7 and S5 PACs.

Two 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. 


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Caractéristiques Avantages

  • 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. 
  • In addition to S7 controllers, the gateway can also be used with Siemens S5 controllers with an appropriate interface. 
  • 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 10,000 16-bit registers can be used to exchange large amounts of data


Modbus® TCP/IP Specifications



Supported Modbus Function Codes

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
22: Mask Write Holding Register (Slave Only)
23: Read/Write Holding Registers (Slave Only)

Supported Clients


Supported Servers

Encapsulated: 5

Command List

Up to 160 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

Siemens® Industrial Ethernet Specifications



Supported PLC Data Exchange (Read and Write)

Siemens S7-200, S7-300, S7-400, S7-1200, S7-1500

Supported Register Types

DB, Inputs, Outputs, Flags, Counters, Timers

Supported Clients





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

Dimensions (H x W x D)

5.38 x 1.99 x 4.38 in

13.67 x 5.05 x 11.13 cm


ATEX Letter of Conformity 107,32 kB Dernière Modification 12/05/2022
Korean KC Registration 974,32 kB Dernière Modification 07/07/2020
Country Approval - Eurasian Customs Union Conformity (EAC) (Wired) 1,92 MB Dernière Modification 10/07/2020
Declaration of Conformity (RoHS/CE) 114,24 kB Dernière Modification 01/06/2022
Declaration of REACH Compliance 145,49 kB Dernière Modification 01/06/2022