HRW HPE8884BN V402 Manual 150622.docx E. & O. E. / Subject to change without notice
Page 4 of 23
The common reference in all cases is the object # therefore during device Object Discovery over the
network the option of Input, Output or Value is decided based on the programmed application use of the
object in question.
BACnet Priority Array
The BACnet protocol utilises a Priority Array for each object to enable various network devices to take
control of a device’s object based on the level of need. Priority 16 is the least significant level and may
be considered normal ‘Auto’ operating level. Priority 1 is the highest control level, generally used for
emergency control under fire condition or similar events.
In respect of this device:
The objects are null priority by default
Manual commands via terminal mode operate at priority level 9
Release of a manual results in an object reverting to next lowest and still valid priority level
Commands from the network to DO and AO are remembered after a power reset if priority
1…8