2. Periodic uplink: report according to reporting interval.
017564 0367f800 04820101 050000
f8 00 => 00 f8
= 248 * 0.1
=24.8 °C
01 01 =>
01 01
=257mm
=0.257m
3. Distance Threshold: report when distance reaches the threshold or returns back to normal
value.
Distance: 33 07 =>07 33 = 1843mm = 1.843m
Alarm Status: 01= Alarm
4. Temperature Threshold: report when the abrupt change of temperature is greater than 5 °C.
Temperature: 22 01 =>01 22 = 290 * 0.1 = 29°C
Alarm Status: 01= Alarm
6.1.2 Downlink Commands
EM400-MUD supports downlink commands to configure the device. Application port is 85 by
default.
03 (Set Reporting Interval)
00 = Standard Mode; 01 = Bin Mode; 02 =
Parking Lot Mode
3e (Set Tilt & Distance Switch)
00 = Disable; 01 = Enable
56 (Set Ultrasonic Distance
Sensor)
00 = Disable; 01 = Enable
9 Bytes,
CTRL(1B)+Min(2B)+Max(2B)+00000000(4B)
CTRL: