10.4.4 Protocol Implementation
The following table summarizes the information required to implement a BACnet system. Refer to
each section of the table to implement a BACnet system properly.
I-Am (Answer to Who-Is, when
broadcast or reset after power-up)
I-Have (Answer to Who-Has)
Device Communication Control
Ignores Password in Device
Communication Control
Warm/Cold Starts (Supports Password)
Start Backup, End Backup, Start
Restore, End Restore, or Abort Restore
services are NOT available.
BACnet communication card
supports an MS/TP Master Data
Link Layer
Supported Standards: MS/TP Available
speed: 9600, 19200, 38400,
and 76800 bps
MAC ID/Device
Object Instance
configuration
Set at COM-01 Int485 ST ID (MAC
ID).
The Device Object Instances are
set at COM-21 and COM-22.
Set at COM-20 (MAX Master Value).