Thank Albertsm
Maybe I did not explain my problem
I made the connection as to the added image.
When my master sends **** Print Makemodbus (3, 6, 0, Moj_reg0 ) **** transmitter receives the data and change its settings, and monitor all the (Awave COM port monitor) the transfer of data is OK.
When my master sends **** Print Makemodbus (3, 3, 0, 8 ); **** transmitter send the correct information because I see it on (Awave COM PORT MONITOR) but my master does not read or perhaps read but I do not ynam to introduce to my LCD.
Baud rate I think it is ok.
If you can give me the code for the receiving 8 bytes or someone who can help, I can not change anything in the transmitter
Thank in advance
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