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BACnet

Ein weltweit standardisiertes Protokoll für Gebäudeautomation und Gebäudemanagement.

Über BACnet

BACnet ist ein offener Kommunikationsstandard für die Gebäudeautomation, der verschiedene technische Systeme wie Heizung, Lüftung, Klima, Beleuchtung oder Energiemanagement miteinander vernetzt. Dadurch können Geräte unterschiedlicher Hersteller zuverlässig Daten austauschen und zentral überwacht sowie gesteuert werden.

Standard & Anwendungen

BACnet ist ein Kommunikationsstandard für die Gebäudeautomation, mit dem technische Anlagen wie Heizung, Lüftung, Klima, Beleuchtung oder Energiemanagement miteinander Daten austauschen können. Er ermöglicht die herstellerunabhängige Vernetzung verschiedener Geräte und Systeme und sorgt für eine zuverlässige Übertragung von Messwerten, Zuständen und Steuerbefehlen.

Dadurch lassen sich Gebäude zentral überwachen und effizient betreiben. BACnet ist sowohl für kleine Gebäude als auch für große und komplexe Liegenschaften geeignet und kann flexibel erweitert werden. Die hohe Interoperabilität macht BACnet zu einer weit verbreiteten und zukunftssicheren Lösung in der Gebäudeautomation.

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Technical performance

Being based on wired communication, its main advantage is the reliability. Unlike radio solutions that always are exposed to changing environments, being affected by other devices that uses the same spectrum and must penetrate changing physical environment, wired solutions are unaffected as long as the wire remains intact.

Bandwidth is limited but systems have excellent robustness against electrical disturbances, caused by e.g. lightning strikes, while at the same time allowing cable lengths up to several km using a standard 2 wire cable.

End devices, such as meters, are called slaves in M-Bus terminology. They are powered by an M-Bus master, typically a separate product or built into a more advanced gateway product. While this design allows meters to only need to rely on the M-Bus cable for both communication and power, it makes the collecting device unsuitable for battery power.

Both Wired and Wireless M-Bus supports

Two-way communication, but systems are, for technical reasons, most often thought of as “one way”, from the meter/sensor to a receiving system.
Encrypted meter/sensor data

Suitable applications

Wired M-Bus is still a very good and robust solution for applications using simpler meters/sensors and where the cost of cabling is acceptable. The latter is often a critical point making it more popular for e.g. new buildings rather than retrofit projects.

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Sontex compatible M-Bus products

Sontex provides a wide range of devices to build complete M-Bus infrastructures, including meters, sensors, converters, gateways, and M-Bus masters. Their high-quality meters collect accurate data on heat, water, and electricity, while affordable sensors add valuable information to the network.

M-Bus gateways gather data from all meters and link it to Meter Data Management (MDM) software. These systems can be managed through both wired and wireless networks. M-Bus masters extend infrastructure capabilities, such as increasing cabling length or connecting more devices.

Sontex also offers pre-wired turnkey M-Bus solutions and accessories like splitters and adapters for easy installation and enhanced functionality.

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