BACnet object types


BACnet is one of the most popular network protocols. It was developed in 1987. Today it is widely used in automation and control systems of buildings, plants, enterprises, and other facilities. The protocol was created to unify the standard for data transmission. Thanks to this solution, it is now possible to combine the equipment of different brands into one group.

What are the objects?

The BACnet network contains devices that support this protocol. They include a wide range of sensors, controllers, temperature meters, surveillance cameras, control units, etc. Each element of the automation system consists of a specific set of standard objects. These structures contain information about data processing, as well as data input and output. Each of them has its specific properties that depend on the operations performed.

The latest version of BACnet has 28 object types. Here are just some of them:

    • analog input, output and value;
    • binary input, output and value;
    • multistate input and output;
    • file, group, device;
    • program, notification class;
    • calendar, schedule;
    • cycle, etc.

Each BACnet object has properties defined by its tasks and functions. They can be both mandatory and optional. The object-oriented structure of the protocol greatly expands its capabilities. Thanks to this feature, it was not so long ago that it became possible to incorporate access control systems, a video surveillance system and other security solutions into the network.


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