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Here you will find practical information and tips on classic building automation and modern smart buildings in a high-quality format.

Products DDC controller OPEN 600 EMS & OPEN 500 EMS


Our DEOS compact controllers have up to 32 integrated inputs and outputs (analog & digital). The OPEN 600 EMS (BACnet Building Controller) and the OPEN 500 EMS (proprietary) are optimally used for controlling single or multiple small building services installations.

Product highlights

With the OPEN 600 EMS and OPEN 500 EMS, you benefit from numerous features and advantages. Discover them now.

  • Made in Germany

    Guaranteed high quality and durability through production on our own innovative SMD production line.

  • Free programmable

    Ensures maximum flexibility in your projects.

  • 2 Ethernet Ports

    Enable easy on-site maintenance without communication outages and serial (daisy chain) cabling of controllers reduces cabling overhead.

  • Time-saving programming

    Save up to 90% of your plant programming time with DEOS libraries.

  • Onboard MBS

    Equipped with integrated HTML5 web server OPENview for plant visualization.

  • IT security

    Highest possible operational security through redundant system design, HTTPS and integrated firewall.

  • Top-hat rail mounting

    The top-hat rail mounting enables easy integration into the control cabinet on site.

  • Certified

    Multiple certified according to international standards such as AMEV / BTL.

  • IoT- & Cloud-Ready

    Ready to use the DEOS GLT OPENweb Cloud and the pro.Building Suite IoT platform.

  • Scalable

    Simple expansion of the controllers by means of IO modules.

  • Manual operation

    Integrated manual operation simplifies commissioning and maintenance procedures.

  • Controller at a glance

    The OPEN 600 EMS BACnet Controller and OPEN 500 EMS Controller (proprietary) with 32 integrated inputs and outputs are ideally suited for single or multiple small building services installations. Sensors with the measuring elements 10 mV/K, Pt1000, Ni1000 DIN and Ni1000 TK5000 can be connected directly to the analog inputs by means of integrated measuring transformers. Special controller variants are also available for the use of NTC sensors. A special highlight of this series is the integrated manual operation, which simplifies commissioning and also maintenance procedures. All requirements for a local override control system are met in accordance with VDI 3814 Sheet 1. The cloud-ready controllers can be flexibly expanded by up to 5 OPEN IO modules to a total of 112 physical data points according to your project requirements. You too can rely on the high-performance OPEN 600 EMS or OPEN 500 EMS!

    Interest aroused?

    Then contact us! We’re glad to help.