With the RS485-LN connected to one of our sensors and connected via Termite, I am able to poll the Modbus registry utilizing the AT+CFGDEV command:
AT+CFGDEV=01 03 00 00 00 01,1
RETURN DATA:01 03 02 00 14 b8 4b 80
I'm looking to pull a single data field from the following copy of the return below:
RETURN DATA: 01 03 02 00 14 b8 4b 80
Byte 1 (Slave Address): 01
Byte 2 (Read Function): 03
Byte 3 (Total Number of Bytes): 02
Byte 4 and 5 (Register Data): 00 14
Byte 6 and 7 (CRC) b8 4b
Byte 8: Not sure why the RETURN DATA is appending 80 on the end of the data string
I set the COMMAND1 and DATACUT1 to the following:
AT+COMMAND1=01 03 00 00 00 01 ,1
AT+DATACUT1=8,1,4+5
After setting these AT+ commands, I should start to see CMD1=, RETURN1= and Payload= transactions. The only transactions that I am seeing are the following:
TX on freq 912.500 MHz at DR 3
RX on freq 923.300 MHz at DR 10
txDone
RX on freq 925.100 MHz at DR 13
RX on freq 923.300 MHz at DR 10
Just not sure why I am not able to see anything after the TX/RX statements above.
Below is a screenshot from the Termite interface: