Versatile cloud-ready controllers

The OPEN 810 EMS (BACnet) and OPEN 710 EMS (proprietary) controllers are developed and designed with up to 512 physical data points for the realisation of small and medium-sized building automation projects – 100% made in Germany. The main tasks of the cloud-ready controller are the control, regulation and monitoring of your technical building systems and to ensure optimum energy efficiency. Our DDC controllers are equipped with an innovative firewall according to the highest security standards to ensure security in the building. In addition, system graphics can be displayed directly on the controller via the integrated HTML5 web server OPENview. With the three different versions, 5, 12 or even 32 OPEN IO modules can be connected to the controller, depending on the project size. Whether for individual buildings or in the property portfolio – the OPEN 810 EMS / OPEN 710 EMS controller is the right product!


Use the OPEN 810 EMS (B-BC controller) with its versatile interfaces and protocols for your BACnet projects.


For proprietary projects you can use the OPEN 710 EMS with its various interfaces and protocols according to your requirements.

Logo BACnet
Logo CAN
Logo Modbus
Logo von KNX
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Logo M-Bus
Logo cloud ready
Logo HTML5
Logo BTL
Logo Allianz für Cyber-Sicherheit
Logo Service Security Center

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

IoT-ready, versatile, 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 system 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


Flyer OPEN 810 EMS

Flyer OPEN 810 EMS

Versatile DDC-Controller download
Broschüre OPEN EMS Automationsstationen

Brochure OPEN EMS

DEOS Hardware overview download

Want to know more?

The DEOS Portal provides our system partners with software, technical information, product documentation and other documents for download. Not yet a system partner? As a guest you will also find additional information such as tender documentation or data sheets for our products.