One-Device Automation: LioN-Power Field Level PLC (μDCU)

LioN-Power μDCU (µ =micro) is the first device that combines the benefits of a field I/O and a programmable logic controller (PLC).

Distributed control units (DCUs) are IP67 I/O modules with integrated programmable logic controller (PLC) functionality that can perform a range of functions – from simple logical operations to solving more complex control problems directly on the module, making one-device automation a reality.


LioN-Power μDCUs offer the flexibility to meet your evolving needs.

μDCU modules independently control applications, perform timer, counter and more functions, and exchange data with higher-level controllers. They enable fast, intuitive installation and maintenance because they can retain configuration and be programmed for a “plug-and-play-like” module exchange.


  • Get the world’s first field programmable controller I/O module that provides multiprotocol support with M12 Power technology.

Highly Flexible

  • Use the μDCU as a slave I/O to a central PLC, as a standalone controller or in a mixed DCU mode in combination with a PLC.


  • Make fieldbus machines instantly Ethernet-ready by placing a μDCU in the machine and tapping into existing sensor data.

Standalone One-Device Automation directly where you need it, for the highest application flexibility in the field level

With LioN-Power μDCU modules, you can easily handle a variety of automation applications in the DCU operation mode -- such as sorting pieces on a conveyor belt -- without any higher level PLC.

Furthermore, you can use these modules to make existing fieldbus machines IP-ready. That means μDCUs are ideal if you don’t want to undergo a complete redesign to upgrade to new technologies.

LioN-Power Distributed Control Units – The μDCU for Ladder Logic Programming

DCUs execute communication, separate diagnostic data from process data and allow cyber physical connections – all of which alleviate the burden typically placed on the PLC.

  • You can program μDCUs with the freeware programming tool LDmicro in Ladder Logic (LAD).
  • This gives you an accelerated, cost-effective path to field-level automation and the capabilities of IIoT.

World’s first field programmable controller I/O module providing multiprotocol support with M12 Power L-coding technology

Employ the highest current rating in the industry to increase power transmission using a 2x M12 L-coded power supply connection with up to 16 amps

Benefits at a Glance

  • Achieve one-device automation through field-level PLC functionality
  • Easily program through the freeware tool LDmicro in ladder logic (maximum of 99 rungs)
  • Easily upload the application program using the μDCU’s embedded webserver
  • Meet multiple needs with a variety of operation modes, including I/O device, standalone DCU mode or mixed DCU mode in combination with a higher-level PLC
  • Secure strong DCU performance with a minimum 10 millisecond cycle time
  • Expand data exchange with 8 digital inputs and 8 digital outputs on-board, galvanic isolation and up to 2 A output current per port
  • Be global-ready with UL 61010-1 approval and multiprotocol support for PROFINET, EtherNet/IP and EtherCAT
  • Employ the highest current rating in the industry to increase power transmission using a 2x M12 L-coded power supply connection with up to 16 amps
  • Withstand harsh conditions – IP65, IP67 and IP69K-rated tolerances for mechanical stress

LioN-Power Distributed Control Unit – LDmicro (Ladder Logic)

0980 ESL 393-121-DCU1
Description LioN-P Distributed Control Unit, LDmicro Programmable (Ladder), Multi-protocol (PROFINET, EtherNet/IP or EtherCAT device), 8 digital input and 8 digital output channels with galvanic isolation, M12 LAN connection, 4-poles, D-coded, M12 L-coded power supply, 5-poles
Order No. 934879005
Protection Degree IP65, IP67, IP69K
Ambient Temperature -20 °C to +70 °C
Dimensions (W x H x D) 59.6 x 30.7 x 200 (mm)
Weight 500 g
Housing Material Metal, Zinc Die-cast

New Product Bulletin & Datasheet

Related products - the LioN-Power system

These modules are a part of Lumberg Automation’s LioN-Power system, a one-stop solution for all your automation needs including connectivity, adapters, other I/O modules and more.

Product Bulletin

One-Device Automation LioN-Power Field Level PLC (μDCU)


One-Device Automation LioN-Power Field Level PLC (μDCU)