What is BACnet ?
BACnet (Building Automation and Control Networks) is a international open protocol designed to allow communication of building automation and control systems for applications such as heating, ventilating, and air-conditioning control, lighting control, access control, fire detection systems and their associated equipment.
It is an ASHRAE, ANSI, and ISO standard protocol.
What are BIBBs ?
A BIBB (BACnet Interoperability Building Blocks) is a simple definition of an interoperability function or capability that refers to a specific set of BACnet features that must be implemented by a device to support that BIBB. The intent of BIBB is to provide a way for the specifier to write a performance specification without needing to understand all of the technical details of how it would be implemented. BIBBs are divided into six categories; data sharing, alarms & events, scheduling, trending, device management, and network management.