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About BACnet
BACnet is the
Data Communication Protocol for Building Automation and Control Networks
BACnet in brief
- Standardized data communication specifically for building automation
- Independent of specific technologies
- No ties to a manufacturer - thus more competitive
- Tested by independent testing laboratories
- The standard is continuously extended and maintained
- Trade-spanning intergration of:
- HVAC
- Lighting control
- Security and fire alarm systems
- Elevator monitoring
- Access control
- Energy supply
- Internet services
- XML applications
- Wireless applications
- Continuous communication at
- Management level
- Automation level
- Field level
- Widest protocol specification for building control
- Supports various media (see BACnet Standard 2008)
- ISO 8802-3 ("Ethernet") LAN
- ARCNET LAN
- MASTER-SLAVE/TOKEN PASSING (MS/TP) LAN
- POINT-TO-POINT (PTP)
- EIA/CEA-709.1 ("LonTalk") LAN
- Standardization
- ASHRAE/ANSI 135
- ASHRAE/ANSI 135.1 Test standard
- EN V 1805-1 (1997 - Management level)
- EN V 13321 (1998 - Automation level)
- ISO TC 205 WG 3 (1998 - Beginning of worldwide standardization)
- ISO 16484-5 (2004 - Standard language for building automation)
- ISO 16484-6 (2004 - Conformance testing)
BACnet is a communications protocol for building automation and control networks.
It is equally suitable for both the automation and management levels, especially
for HVAC, lighting control and fire alarm equipment. It is recognized as an
ANSI and CEN standard as well as ISO standard 16484-5. The protocol is based
on four layers of the OSI model:
