Controller with integrated I/Os and manual operation

With 32 integrated inputs and outputs, the OPEN 600 EMS (BACnet) and OPEN 500 EMS (proprietary) controllers are ideal for small, decentralised applications. Sensors with the measuring elements 10 mV/K, Pt1000, Ni1000 DIN and Ni1000 TK5000 can be connected directly to the analogue inputs via integrated transducers. Special controller versions are also available for the use of NTC sensors. A special highlight of this series is the integrated manual operation, which simplifies commissioning and maintenance procedures. All requirements for a local priority operating device are fulfilled in accordance with VDI 3814 Part 1. These cloud-ready controllers can be flexibly expanded according to your project requirements by up to 5 OPEN IO modules to a total of 112 physical data points. The integrated OPEN EMS Service & Security Center with its innovative firewall ensures secure operation of the controller and the entire system. In addition, system graphics can be displayed directly on the controller via the integrated HTML5 web server OPENview. You too can rely on the OPEN 600 EMS or OPEN 500 EMS!


Use the OPEN 600 EMS (B-BC controller) for your BACnet small projects or for room automation. The integrated I/Os are typically sufficient for such applications.


For proprietary micro applications, use the OPEN 500 EMS. The integrated I/Os also make it ideal for use in room automation.

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System openness

The system openness and the diverse interfaces and protocols make the OPEN EMS controllers exceptionally flexible to use. In order to meet project requirements, they can be extended via the CAN-bus by up to 198 input and output modules. The IO modules can be positioned up to 5 km from the controller.

Time-saving programming

You can choose whether you want to program the OPEN EMS freely or use the preconfigured and time-saving DEOS libraries. By using the template or macro library, programming work can be reduced by up to 90% and programming errors avoided.

Integrated HTML5 web server

The powerful integrated HTML5 web server OPENview is available on every controller from the OPEN EMS product range. You can access them decentrally via the Internet or Intranet. OPENview enables graphical visualisation and operation of your system even via remote access, which is not only simple but also saves you valuable time.

Integrated Service & Security Center

With the OPEN EMS Service & Security Center and the integrated IT security functions, your DDC controllers and your building automation are protected against unauthorised access and cyber attacks from outside. The installation and setup of the firewall is intuitive and can be implemented via preconfigured security modes without any in-depth IT knowledge.

Product highlights

Cloud-ready, compact, secure!


Guarantees high quality and durability thanks to production on our own innovative SMD production line

Guarantees you maximum flexibility in your projects

Enable easy on-site maintenance without communication failures and the serial cabling (daisy chain) of controllers reduces cabling effort

Realise time savings of up to 90% by using DEOS libraries for system programming

Equipped with integrated HTML5 web server OPENview for system visualisation

Highest possible operational reliability due to HTTPS and integrated firewall according to highest security standards

DIN-rail mounting allows easy integration into the switch cabinet on site

Multiple certifications according to international standards such as AMEV / BTL

Ready for use with the new DEOS BMS OPENweb Cloud


Broschüre OPEN EMS Automationsstationen

Brochure OPEN EMS

DEOS Hardware overview download
DEOS Systemtopologie

DEOS System Topology

Poster with DEOS Hardware & Software download

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