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.