Downlink Information for LoRaWAN

All downlink payloads must be in least significant bit (LSB) hexadecimal format.

You can use this free converting tool to create a payload in the correct format

Transmission interval setting

Fport: 19

Interval	Payload
10 minutes	58020000
60 minutes	100e0000
6 hours	60540000
12 hours	c0a80000
24 hours	80510100

💡Default setting: 60 minutes

Upper Limit	2 592 000 seconds (30 days)
Lower Limit	600 seconds (10 minutes)

LoRaWAN reset / switch network

Fport: 102

Payload	Delay time
0	10 seconds

Automatic reset:

The device will also automatically reset the network after 54 uplinks without any answer. So it will take by default 54 hours to reset if the network is lost.

Reset total volume data on LCD

Fport: 101

Payload

Set device state

Fport: 2

Reset device to initial mode (pipe selection mode)

Payload	Description
04	Reset device to initial mode (pipe selection mode)
05	Force activate device to metering mode (to skip the 1h settling time

Change pipe type setting

See values of pipe_id below depending on model (plastic/copper model).

Use Fport: 4

CubicMeter 1.1 Copper

Pipe Type	Payload	Description
Copper 15 mm	01	Copper
Copper 18 mm	02	Copper
Copper 22 mm	03	Copper
Chrome 15 mm	04	Chromed Copper
Chrome 18 mm	05	Chromed Copper

CubicMeter 1.1 Plastic

Pipe Type	Payload	Description
PAL 16 mm	07	PE-RT/Aluminium/PE-RT
PAL 20 mm	08	PE-RT/Aluminium/PE-RT
PAL 25 mm	09	PE-RT/Aluminium/PE-RT
PEX 16 mm	0E	Plastic, PEX or PE-RT
PEX 20 mm	0F	Plastic, PEX or PE-RT
PEX 25 mm	10	Plastic, PEX or PE-RT
Distpipe	11	For "LK Distance pipe 110"