Downlink Frames; Product Configuration Request Frame; Network Configuration Request Frame; Frame For Adding An Offset To Pulse Counters - ADEUNIS LoRaWAN US902-928 Pulse Guide Utilisateur

LoRaWAN US902-928 Pulse - Guide utilisateur / User guide version V1.0.0

4.2. Downlink frames

LoRaWAN technology makes it possible to transmit information to the product from the network (downlink frame).
The class A of the LoRaWAN specification allows the product to receive information from the network by proposing two listening windows after
each uplink communication (uplink frame).

4.2.1 Product configuration request frame

This frame allows to inform the product via the network that it must resend the product configuration uplink frame (0x10).
0 1
Code PAYLOAD
0x01 0x00

4.2.2 Network configuration request frame

This frame allows to inform the product via the network that it must resend the network configuration uplink frame (0x20).
0 1
Code PAYLOAD
0x02 0x00

4.2.3 Frame for adding an offset to pulse counters

This frame allows to add an offset to the counter value on each channel.
0 1 to 4
Code
0x03 Offset - channel A
0x03 0x00000015
Its size is of 9 bytes.
Description of the frame :
• Bytes 1 to 4: Offset - channel A : numbers of pulses to add to current index of the meter (channel A) (unsigned 32-bits, MSB first).
• Bytes 5 to 8: Offset - channel B : numbers of pulses to add to current index of the meter (channel B) (unsigned 32-bits, MSB first).
In the example in grey this gives:
• Bytes 1 to 4 =0x00000015 so 21 pulses to add to channel A counter
• Bytes 5 to 4 =0x00000050 so 80 pulses to add to channel B counter

4.2.4 Specifc register value request frame

This frame (0x40) allows to inform the product via the network that it must send the values of specifc registers in a uplink frame (0x31).
0 1
Code
0x40 CONFID1
2 3
0x00 0x00
2 3
0x00 0x00
5 to 8
Offset - channel B
0x00000050
2 3
CONFID2 CONFID3
4 5
0x00 0x00
4 5
0x00 0x00
4 5
PAYLOAD
CONFID4 CONFID5
6 7
0x00 0x00
6 7
0x00 0x00
... N
... CONFIDn
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