BACNET-IP

BACnet over IP UDP port 47808.

Definition

BACnet/IP architecture: BACnet Virtual Link Layer (BVLL) over UDP 47808, Network Layer with BACnet Broadcast Management Devices (BBMD) for cross-subnet broadcasts, NPDU (Network Protocol Data Unit), APDU (Application). Standard objects: Analog Input/Output/Value, Binary Input/Output/Value, Schedule, Calendar, Trend Log, Event Log, Notification Class. Adoption: Schneider Electric EcoStruxure Building, Siemens Desigo CC, Honeywell, Johnson Controls Metasys, Trane.

Origin

BACnet specification published ASHRAE 1995 ; BACnet/IP introduced 1999 ; ISO 16484-5 published 2003 ; ASHRAE 135 revisions until 2024.

Example in context

A 500-room Marriott Hotel uses BACnet/IP to control roof-top HVAC units (RTUs) and VAV terminals via Siemens Desigo CC BMS ; 5000 BACnet objects management.

Related terms

• KNX BACnet bridge — KNX integration.