User Guide

15
0b (Power On)
Device is on
0f (Device Type)
00: Class A, 01: Class B, 02: Class C
16 (Device SN)
16 digits
Example:
ff0bff ff0101 ff166329c42503920003 ff090100 ff0a0101 ff0f00
Channel
Type
Value
Channel
Type
Value
ff
0b
(Power On)
ff
(Reserved)
ff
01
(Protocol Version)
01 (V1)
Channel
Type
Value
Channel
Type
Value
ff
16
(Device SN)
6329c42503
920003
ff
09
(Hardware version)
0100
(V1.0)
Channel
Type
Value
Channel
Type
Value
ff
0a
(Software
version)
0101
(V1.1)
ff
0f
(Device Type)
00
(Class A)
5.2 Sensor Data
EM400-TLD reports sensor data according to reporting interval (10 mins or 20 mins by default).
Channel
Type
Description
01
75(Battery Level)
UINT8, Unit: %
03
67 (Temperature)
INT16, Unit: °C
04
82 (Distance)
INT16, Unit: mm
05
00 (Device Position)
00: Normal (horizontal offset angle < 20°)
01: Tilt (horizontal offset angle ≥ 20°)
Example:
017564 0367f800 04820101 050000
Channel
Type
Value
Channel
Type
Value
01
75
(Battery)
64 => 100%
03
67
(Temperature)
f8 00 => 00 f8
= 248 * 0.1
=24.8 °C
Channel
Type
Value
Channel
Type
Value
04
82
(Distance)
01 01 =>
01 01
=257mm
=0.257m
05
00
(Device Position)
00=Normal
Threshold Packet:
When collected distance exceeds threshold, EM400-TLD will report a distance alarm packet;