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Topics

BACnet: Manufacturer-Independent Building Control

“Building Automation and Control Networks” (BACnet) is a data transfer protocol for building automation and control. BACnet simplifies communication between products from different manufacturers within building automation.

BACnet in Brief:

  • Standardized data exchange for building automation
  • Uniform communication on the management, automation and field level
  • Cross-system integration of devices of different building control systems, e.g., elevator surveillance, access control, power supply or radio applications

BACnet Simply Explained

BACnet was developed by the “American Society of Heating, Refrigeration and Air-Conditioning Engineers Inc.” – in short, ASHRAE. Published as an American standard in 1995, BACnet has been the ISO standard 16484-5 since 2003. BACnet provides open, interoperable building automation. As a result, extensions and changes in the building can be implemented independently of manufacturer and across systems. This is made possible by using common data points and coordinated functions.

Flexible Integration: BACnet in Building Automation

There is a multitude of different building automation protocols; in large-scale projects, individual systems often develop independently of one another. BACnet connects different systems and products, facilitating data exchange between different devices in a single overall system. BACnet supports a number of network technologies and topologies including the IP protocol, allowing cross-system integration of HVAC, lighting control, security and fire alarm systems on the management and automation level. That means not only increased flexibility, but less maintenance and installation costs for building automation and control. As a global communication standard, BACnet is tested by independent laboratories and continuously developed and maintained.

Advantages with BACnet:

  • Independent of technology and manufacturer

  • Compatible with various network technologies, e.g., ETHERNET, ARCNET LAN, MS/TP or PTP

  • Tested by independent laboratories