MODBUS-GW Installation and Operation Manual —
P/N LS10015-000NF-E:C2 4/30/2019
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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 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
.