Modbus® TCP/IP to PROFINET® Device Gateway - PLX31-MBTCP-PND


The Modbus TCP/IP to PROFINET device gateway offers bi-directional data transfer between a PROFINET Controller and Modbus TCP/IP networks. The Modbus TCP/IP driver uses multiple clients and servers for faster data throughput. The PROFINET driver operates as a PROFINET device (slave).

The PLX31-MBTCP-PND gateways are stand-alone DIN-rail mounted units that provide one Ethernet port for communications, remote configuration, and diagnostics. The onboard SD Card slot (SD card optional) is used for storing configuration files that can be used for recovery, transferring the configuration to another gateway, or general configuration backup.


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特性 优势

  • PROFINET v2 certification with PROFINET class A compliance
  • Field-tested with multiple Modbus TCP/IP devices, and PROFINET controllers from multiple vendors
  • Remotely view and diagnose Modbus TCP/IP and PROFINET networks
  • Remote configuration via the free, intuitive, ProSoft Configuration Builder (PCB) software
  • Multiple, simultaneous Modbus TCP/IP client and/or server connections to allow for increased throughput
  • 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 (server only)

23: Read/Write Holding Registers (server only)

Supported clients


Supported servers

MBAP = 5, 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

PROFINET Specifications



Driver Type

Class A Device


1440 bytes IN, 1440 bytes OUT

Exchange Types

Cyclic Real-time (RT) and Acyclic Data

Hardware Specifications



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


IEC 60068-2-27; 15G @ 11ms, 3-Axis (Operational)

IEC 60068-2-27; 30G @ 18ms, 3-Axis (Non-Operational)


IEC 60068-2-6; 5G @ 10 to 150 Hz

 (H x W x D)

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

LED Indicators


*Configuration (CFG)
 *Error (ERR) Status

*Power (PWR)

*Hardware Fault (FLT)

*Network Status (NS) Modbus TCP/IP Class I or Class III -Connection Status (Modbus TCP/IP only)
 *Module Status (MS) Module Configuration Status
 (Modbus TCP/IP only)
 *Ethernet Communication Port Link/Activity and 100mbit

Ethernet Port


*10/100Mbit RJ45 Connector Electrical Isolation 1500 Vrms 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

Shipped With Each Unit

2.5 mm screwdriver, J180 Power Connector


ATEX Letter of Conformity 107.32 kB 最后修改 2022.05.12
CB Safety 348.30 kB 最后修改 2022.10.20
Korean KC Registration 974.32 kB 最后修改 2020.07.07
Profibus/Profinet Certificate 321.43 kB 最后修改 2015.05.22
Declaration of Conformity (RoHS/CE) 114.24 kB 最后修改 2022.06.01
UL Certificate of Compliance 233.35 kB 最后修改 2022.11.16
Country Approval - Eurasian Customs Union Conformity (EAC) (Wired) 1.92 MB 最后修改 2020.07.10