System Sensor FAAST Modbus - Manual (Page 13)

User Guide: FAAST Fire Alarm Aspiration Sensing Technology® Modbus Protocol Schema 1
13 Rev A0
Device Logs
The device’s Log Structure is READ ONLY and mapped directly to a set of holding registers. The structure in the Firmware is defined
as follows:
Address Size
(16-bit
words) Parameter Name Type Description
40086 1 Event Log Entries U16 Number of Event Log Entries
87 1 Trend Log Entries U16 Number of Trend Log Entries
88 1 Message Log Entries U16 Number of Message Log Entries
89-208 3 x 40 Read Event Log U32
U16
Reads 40 log entries starting with the entry in the Index register.
Each entry contains a 32-bit Epoch time stamp and 16-bit Event number
The events numbers represent the following events:
Test 0
Normal 1
Isolate 2
POR 3
Reset 4
UI Passcode Entry Failure 5
UI Passcode Entry Success 6
UI Button Autolock 7
Filter Cover Open 8
Filter Cover Closed 9
Configuration Change Success 10
User Login 11
User Logout 12
Flow Fault High 13
Flow Fault Low 14
Configuration Fault 15
Configuration Fault Urgent 16
Sensor Fault 17
External Device Fault 18
External Device Fault Clear 19
Communication Fault 20
Aspiration Fault 21
Aspiration Fault Urgent 22
Filter Fault 23
Filter Fault Urgent 24
Time Fault 25
Low Voltage Fault 26
Low Voltage Fault Clear 27
Alarm Alert 28
Alarm Action1 29
Alarm Action2 30
Alarm Fire1 31
Alarm Fire2 32
Operating Mode Disable 33
209-232 24 Read Trend Log U32
F32 [11]
Reads log entry specified by the Index register.
Each entry contains a 32-bit time stamp and daily air velocity and smoke
detection logs including:
Float : Daily Alert Threshold
Float : Daily Action1 Threshold
Float : Daily Action2 Threshold
Float : Daily Fire1 Threshold
Float : Daily Fire2 Threshold
Float : Trend Max
Float : Trend Min
Float : Trend Avg
Float : Air Velocity Max
Float : Air Velocity Min
Float : Air Velocity Avg
233-298 66 Message Log U32
U16 [64]
Reads the log entry specified by the Index register.
Each entry contains a 32-bit time stamp and a UTF-16 64 character string.
Table 5. Device Log Modbus Holding Registers