Downlink Command

This device supports downlink commands for configuration and control. The downlink application port is 85 by default.

General Setting

Item	Channel	Type	Byte	Description
Reboot	ff	10	1	ff
Collect Interval	ff	02	2	UINT16, Unit: s
Report Interval	ff	03	2	UINT16, Unit: s
Data Storage	ff	68	1	00: Disable, 01: Enable
Data Retransmission	ff	69	1	00: Disable, 01: Enable
Data Retransmission Interval	ff	6a	3	Byte 1: 00 Byte 2-3: UINT16, Unit: s, Range: 30~1200, Default: 600

Example:

1. Reboot the device.

   ff10ff

2. Set collect interval as 20 minutes.

   ff02b004
   Channel	Type	Value
   ff	02	b004=>04b0=1200s=20 minutes

3. Set report interval as 20 minutes.

   ff03b004
   Channel	Type	Value
   ff	03	b004=>04b0=1200s=20 minutes

Alarm Setting

Channel	Type	Byte	Description
ff	06	9	Byte 1: 10=Disable, 11=Enable Byte 2-5: 00000000 Byte 6-7: Alarm reporting interval, unit: s Byte 8-9: Alarm reporting times

Example:

Enable alarm and set alarm reporting interval as 1 minute and alarm reporting times as 2.

ff0611000000003c000200
Channel	Type	Value
ff	06	11=Enable 3c00=>003c=60s=1 minute 0200=>0002=2

D2D Setting

Channel	Type	Byte	Description
ff	79	4	Byte 1: 03=Leak, 04=No Leak Byte 2: 00=Disable, 01=Only D2D, 03=D2D & LoRa Uplink Byte 3-4: D2D Command

Example:

When water is leaked, send D2D command 0110.

ff7901031001
Channel	Type	Value
ff	79	03=Leaked 01=Only D2D D2D Command: 10 01=>0110