Device logs – System Sensor FAAST Modbus User 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