User Manual

BROWAN COMMUNICATIONS All rights reserved 4
4.1.2 Payload
Port
122
Payload Length
9 bytes
Bytes
0
1
2
3
4
5
6
7
8
Field
Status
Battery
Temp
RH
Time
Count
Status
Sensors status
Bit [0]
Bit [1]
Bit [2]
Bits [7:3]
1 – occupied, 0 – free
1 – Button pressed, 0 - Button released
1 – Tamper detected, 0 - No tamper detected
RFU
Battery
Battery level
Bits [3:0]
Bits [7:4]
unsigned value ν, range 0 – 15;
battery voltage in V = (21 + ν) ÷ 10.
RFU
Temp
Environment Temperature
Bits [7:0]
sign integer temperature in °C
RH
Relative humidity as measured by a digital sensor
Bits [6:0]
Bit [7]
unsigned value in %, range 0-100.
RFU
Time
Time elapsed since the last event-triggered
Bits [15:0]
unsigned value in minutes, range 0 – 65,535.
*Note little-endian format.
Count
Total count of event-triggered
Bits [23:0]
unsigned value, range 0 – 16,777,215.
*Note: little-endian format.
Note: This value is not stored persistently on the device, and may reset whenever the device is
power-cycled or rebooted.