Communication Protocol; Contents Of This Chapter; Bacnet/Ip; Prioritizing Commands - ABB FBIP-21 BACnet/IP User Manual

Communication protocol 49

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Communication protocol

Contents of this chapter

This chapter describes the BACnet/IP communication protocol for
the adapter module.

BACnet/IP

BACnet/IP is a standard data communication protocol intended for
supervision and control of building automation equipment.
The FBIP-21 adapter module supports the BACnet protocol
version 1, revision 12 according to the ISO 16484-5:2014
standard.
BACnet/IP uses objects to abstract and represent information. An
object is a collection of data elements called properties. The type
of the object determines which properties are present. This
information is accessed through standardized services, which can
also be used to command BACnet devices.
The FBIP-21 adapter module acts as a server providing object
data access for BACnet clients.

Prioritizing commands

Commandable objects consist of priority array property, which is
used to store the command priority. If you do not define priority with
a command (example, write service request), the priority defaults
to the least important command.