• Industrial Ethernet
  • EtherNet/IP

Embedded Module for RTE and IoT communication - EtherNet/IP Adapter & OPC UA / MQTT

The module for all communication tasks

Product Image


COMX 51CA-RE-Image



At a glance

  • Complete EtherNet/IP Adapter interface with network connector onboard
  • IoT communication per integrated OPC UA-server & MQTT-client
  • Host connection via Dual-Port Memory or SPI
  • Transparent Ethernet channel for own IT solutions
  • Firmware update via integrated WebServer
  • One hardware for all Real-Time Ethernet systems

Weitere Informationen


Embedded Module for Industrial Ethernet and IoT communication


Compact field devices will increasingly be equipped with more intelligence and functionality. Especially for I4.0 and IIoT a continuous, object-oriented data model from field device to the cloud shall be established. For cloud-based applications, e.g. predictive maintenance or condition monitoring, the relevant objects shall be transmitted directly via IoT communication without detours.

To meet these objectives Hilscher has enhanced its communication module comX 51 with an integrated OPC UA server and MQTT client. The user can transmit data via OPC UA or MQTT on the same physical cable parallel to the Real-Time Ethernet communication - reactionless and bypassing the PLC.

As normal for compact field devices, the exchange of process- as well as IoT-data to the application processor is done via a 50 MHz fast SPI interface. Thanks to a compatible API existing products can easily be extended with OPC UA and MQTT functionality just per software-update. The customer application only needs to be expanded with an additional object interface for the newly added IoT protocols.

Ordering information

Product namePart numberBrief description
COMX 51CA-RE1571.100/EISIOTEmbedded Module for RTE and IoT communication - EtherNet/IP Adapter & OPC UA / MQTT


Product namePart numberBrief description
COMXEB1530.000comX Evaluation Board

The comX communication module is a universal solution for upgrading devices with master or slave functionality. All modules are pin-compatible and have an identical software interface.
There are designs with an integrated network connector and designs in which the network interface is tied to the base board.