PLX51-PBM PROFIBUS DP Master/Slave to EtherNet/IP™ Gateway


The PLX51-PBM gateway provides connectivity to EtherNet/IP™ networks for PROFIBUS DP networks by operating as either a Master or Slave device on the PROFIBUS DP network.

For easy integration to a Rockwell Automation Controller, the gateway and configuration software create dynamic AOI’s based on the user configuration to add logical tag names to the PLC project file. Thus, reducing the overall programming time.

With advanced tools such as PROFIBUS device discovery and a built-in PROFIBUS DP packet capture utility, PROFIBUS DP network commissioning time can be greatly reduced. 

Dual Ethernet ports of the module can support either DLR (Device Level Ring) topology, or can be used as an embedded switch for flexible installation options.

A conformal coating option is available for this product.


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Features and Benefits

  • Supports DLR for EtherNet/IP networks
  • PROFIBUS master or slave (with multi-slave support)
  • PROFIBUS packet capture tool built in


The PLX50 Configuration Utility software is used for configuration and troubleshooting of the module. The stand-alone configuration utility allows users to define the setup and configuration of the PROFIBUS DP network, connections with Rockwell Automation controllers and devices over EtherNet/IP, and build custom Add-On Instructions (AOIs) to be imported into Studio 5000 applications. 

With the ability to import custom AOI’s into the Studio 5000 environment and advanced PROFIBUS DP tools such as the packet capture utility, commissioning time of a network can be greatly reduced.  


EtherNet/IP™ Server

As an EtherNet/IP server, the gateway can support up to 4 Class 1 I/O connections back to a Controller on an EtherNet/IP network. Additionally, the server can respond to Class 3 messages from an EtherNet/IP client for the transfer of Status and PROFIBUS DP data.



Cyclic or acyclic data can be transferred with Class 1 or Class 2 DPV1 services, allowing communication with slave devices supporting PROFIBUS DPV0 or V1 protocols. The gateway acts as an input/output link between the PROFIBUS network and the EtherNet/IP protocol. Data transfer by the EtherNet/IP protocol is asynchronous from data transfer on the PROFIBUS network.

  • Easy-to-use drag and drop configuration interface via ProSoft PLX50 Configuration Utility
  • GSD file import library
  • Monitoring and Modification of process data and DPV1 acyclic data
  • Multi-drop on a PROFIBUS DPV1 network with other compatible devices
  • Automatic project documentation, and Bus Parameter calculation
  • Supports online slave diagnostics, and extended diagnostic data (DPV1)
  • Auto baud detection at all valid PROFIBUS DPV1 rates up to 12 Mbps
  • Master Status LED Indicators for Operations, Network Communication, Master Token-Hold and Network Configuration.
  • Up to 125 Slaves can be connected with a repeater
  • Up to 1536 cyclic bytes input and 1536 bytes output data
  • Supports Extended Diagnostic Data
  • Alarm Handling (DPV1)
  • Supports Sync and Freeze commands
  • Supports PROFIdrive 3.1 compliant parameter read and write operations
  • Supports Multicast and Broadcast telegrams (DPV1)








ARP Connections

Max 40

TCP Connections

Max 40

CIP Connections

Max 10

Communication Rate


Duplex Mode

Full / Half / Auto Negotiate






PROFIBUS DP Master or Slave

Baud Rate

9600, 19.200, 45.5 kbps, 93.75 kbps, 187.5 kbps, 500 kbps, 1.5 Mbps, 3 Mbps, 6 Mbps, 12 Mbps


DPV0 or DPV1

Cyclic I/O data

Input: 1536 bytes
Output: 1536 bytes

Stop bits






IEC 61000-6-4

ESD Immunity

EN 61000-4-2

Radiated RF Immunity

IEC 61000-4-3

EFT/B Immunity

IEC 61000-4-4

Surge Immunity

IEC 61000-4-5

Conducted RF Immunity

IEC 61000-4-6




Enclosure Rating

IP20, NEMA/UL Open Type


-20 to 70 °C

Earth Connection

Yes, terminal based

Dimensions (H x W x D)

5.86 x 1.33 x 4.56 in
149 x 34 x 116 mm

Power Requirements

Input: 10 to 36V DC

Power Consumption

85mA @ 24V => 2.04W

Power Connector

3-way terminal


24 to 18 AWG


Ex Certificate (ATEX Directive) 278.54 kB Last Modified 09/04/2019
CB Safety 1.97 MB Last Modified 09/04/2019
UL/cUL; Class1, Div 2 235.70 kB Last Modified 09/04/2019
ODVA EtherNet/IP Declaration of Conformity 37.88 kB Last Modified 09/04/2019
Country Approval - Russia - EAC Declaration (Wired) 1.92 MB Last Modified 01/07/2020