MODBUS-GW Installation and Operation Manual — P/N LS10015-000NF-E:C2 4/30/2019 45
Appendix C MODBUS-GW Active Event Types
All NFN events are mapped into Modbus event categories which are stored in the Modbus register. Events are mapped as shown in
Table C.1.
Table C.1 Event Type Categories
Event Modbus Register Value
No Active Status (see note) 00H
Mass Notification Alarm, High Priority 05H
Fire Alarm 10H
Security Alarm (Life) 11H
Critical Process Alarm (Life) 12H
Medical Emergency (Life) 13H
CO Alarm 14H
Mass Notification Alarm, Low Priority 15H
Security Alarm (Property) 20H
Critical Process (Property) 21H
Mass Notification Supervisory, High Priority 25H
Supervisory Signal (Guard’s Tour) 30H
Supervisory Signal (Equipment) 40H
Mass Notification Supervisory, Low Priority 45H
Disabled Alarm (AFP2800 Panel Only) 52H
Disabled Active (AFP2800 Panel Only) 55H
Non-Fire Activation 71H
Non-Fire Activation (no acknowledgment required) 72H
CO Alarm & Fire Alarm EAH
CO Supervisory EBH
CO Supervisory & Photo Supervisory ECH
CO Supervisory & Fire Alarm EDH
CO Alarm & Photo Supervisory EEH
Device Not Present FFH
NOTES:
• Multiple states are possible for a device. For example, a device connected to a Fire Alarm
Control Panel may be both Active and Disabled. Also, a device may be in the Trouble and
Fire Alarm states at one time.
• “No Active Status” does not indicate the point/device is in a normal state. The holding register
for the point or device contains more detail. For more information, refer to Section 5,
"Register Mapping".
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