B meters IWM-LR3 User Manual page 12

Error field:
Code
0x00
0x03
0x04
0x07
3. Command list descriptions (downlink)
This describes the payload data that is sent to and from the application server. All downlink application
communication is done on LoRaWAN port 1.
3.1 GET_FW_VERSION (0x07)
The command used to read the version of the FW loaded on the card.
R2H:
HEADER property
Fct C/R/A
1 byte 1 byte
0x07 0
H2R (ANSWER):
HEADER property
Fct C/R/A
1 byte 1 byte
0x07 0
The Device Type field indicates the type of device.
The Err field in the answer can take on the following meanings:
0x00 - No Error
0x03 - Incorrect request, password was not presented
0x04 - Length Error
IWM-LR3 - IWM-LR4
Err Chain
1 byte 1 byte
0 0
Err Chain
1 byte 1 byte
0 0
12
Description
No errors
Wrong request. Used when an incorrect password is
present.
Error Length
Data Error
Len
1 byte
0x00
Date
Len Device Type
1 byte 1 byte
0x04 0x04
Fw Version
3 bytes
0x000008
User Manual v1.0