Notification Class Object

A notification class object is required for both types of BACnet alarming. It directs alarm or event notifications to specific recipients (devices or management stations). This object also defines which alarm and event notifications a device can receive, the priorities of the event-notification messages, and whether acknowledgments are required.

The following table shows specification suggestions for priority ranges:

Notification Class Priority Ranges
Message Group	Priority Range	Network Priority
Life Safety	00 – 31	Life Safety Message
Property Safety	32 – 63	Life Safety Message
Supervisory	64 – 95	Critical Equipment Message
Trouble	96 – 127	Critical Equipment Message
Miscellaneous Higher Priority Alarm and Events	128 - 191	Urgent Message
Miscellaneous Lower Priority Alarm and Events	192 – 255	Normal Message

The Copy All feature overwrites the intrinsic alarm information of the target objects. If the notification class object in the source object does not exist in the target object, then a notification class object is created.