The embedded device series eNetVario is small, efficient and designed for industrial use. The metal housing is extremely robust and can be used both as a desktop housing and for top-hat rail mounting in accordance with EN 60 715.

We use Debian Linux as the operating system, which has been adapted to the hardware-specific device features (BSP).

M2M communication takes place via sockets or the network interfaces using TCP/IP and MQTT, alternatively also via a JSON REST API. The Mosquitto MQTT broker and the Node-RED programming environment are pre-installed and ready for immediate use. You can find detailed information on this in our online documentation.

The core components of the device are the embedded module eNetMaxi with the carrier card MKC1502. This is available in a different assembly variant as a reference design (eNetEval.1502) for your own developments.

The eNetVario has two Ethernet ports (10/100Mbit), several serial and USB interfaces. In addition, up to 6 process I/O boards can be integrated into the device. This flexible design of analog and digital I/O in conjunction with intelligent pre-processing means that inexpensive devices for a maximum of 24 sensors/actuators can be supplied for many areas of application.

Power is supplied directly via the network cable in accordance with the IEEE802.3af standard (Power over Ethernet, PoE). A conventional power supply is not necessary, but can be used as an alternative.


The eNetVario combines or extends the functionality of internal process I/O and powerful pre-processing. It is also possible to integrate additional external sensors and actuators (IONet, eNetCube, remote I/O) into the system via the network, as well as a connection to cloud/edge solutions.

The second network interface makes it possible to isolate data access or MQTT clients in separate network segments without allowing access from one network segment to the other. Of course, encrypted communication using TLS is supported.

Regardless of the installation location, the eNetVario is operated with a standard Cat-5 Ethernet cable to a PoE-capable switch/router. If this is operated on an uninterruptible power supply (UPS), the functionality of the devices can be guaranteed even in the event of a power failure. The expensive installation of a conventional power supply is no longer necessary.

The device was developed by MKC and is manufactured at the Wuppertal site. This means that the main part of the PLM/ALM (Product/Application Lifecycle Management) is the responsibility of MKC. For this reason, we are able to

  • adapt the firmware,
  • change the homepage and the housing to your company design (corporate identity) and
  • the conception of a complete embedded system

as a service. You receive an OEM device tailored to your requirements quickly and cost-effectively and can focus on your actual application.

Simply send us your questions and requests using our inquiry form.