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ISA100 Gen X Radio Module User's Guide
Honeywell
Release Independent
April 2018
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
Packet
Length
Packet
Class
Packet
Type
Packet
ID
Packet
size
Check
sum
Checksum
0x5A
0x04
0x30
0x0f
0x01
0x00
XX
XX
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
Byte
Pkt
Len
Pkt
Class
Pkt
Type
Pkt
ID
Pkt
size
Data
Data
Data
Check
sum
Check
sum
0x5A
0x07
0x30
0x82
0x01
0x03
0x00
0x00
Pwr
State
Valu
e
XX
XX
States
Value
Description
PWR_STATUS_LINE
0
line powered
PWR_STATUS_BATTERY_1
1
battery powered, > 75%
PWR_STATUS_BATTERY_2
2
battery powered, between 25% and 75% remaining
capacity
PWR_STATUS_BATTERY_3
3
battery powered, < 25%
PWR_STATUS_UNKNOWN
255
status not known yet
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
Packe
t
Class
Packe
t
Type
Packe
t ID
Packe
t size
Dat
a
Byt
e 0
Dat
a
Byt
e 1
Checksu
m LSB
Checksu
m MSB
0x5A
0x06
0x38
0x97
0x01
0x02
RSSI
RSQI
XX
XX