Honeywell ISA100 Gen X User Manual page 40

The stack specific Get TAI Time request is sent by the Sensor board to the Radio to know the
current TAI time. The Radio sends a response to the Sensor with the current TAI time in
seconds. The request message has a data length of 0, whereas the response message has 4-
byte data value of TAI time.
Sync
Byte
0x5A
ISA100_NOTIFY_POWER_STATUS
This is a notification message sent by the Sensor periodically to the Radio board to update
the power supply status. The message contains 1-byte power supply status and the values are
as follows:
Sync Pkt
Byte Len
0x5A 0x07
States
PWR_STATUS_LINE
PWR_STATUS_BATTERY_1
PWR_STATUS_BATTERY_2
PWR_STATUS_BATTERY_3
PWR_STATUS_UNKNOWN
ISA100_NOTIFY_RSSI_RSQI
This command is sent from the Radio to the Sensor with information on RSSI and RSQI
values to be displayed on the LCD.
Sync Byte Packe
t
Lengt
h
0x5A 0x06
40
Packet Packet Packet
Length Class Type
0x04 0x30 0x0f
Pkt Pkt Pkt
Class Type ID
0x30 0x82 0x01
Value
0
1
2
3
255
Packe Packe Packe
t t t ID
Class Type
0x38 0x97 0x01
ISA100 Gen X Radio Module User's Guide
Honeywell
Packet Packet
ID size
0x01 0x00
Pkt Data Data
size
0x03 0x00 0x00
Description
line powered
battery powered, > 75%
battery powered, between 25% and 75% remaining
capacity
battery powered, < 25%
status not known yet
Packe Dat Dat
t size a a
Byt Byt
e 0 e 1
0x02 RSSI RSQI
Check Checksum
sum
XX XX
Data Check Check
sum sum
Pwr XX XX
State
Valu
e
Checksu Checksu
m LSB m MSB
XX XX
Release Independent
April 2018