RS232 - DAYTON AMP

[fahd-bnh]

The code looks correct. Check the cables, maybe RX/TX has to be swapped?

Hi, 
I have contacted the DAYTON technical support team about the problem however they gave me software to send the commands from it, and after sending the commands from their software it worked from the LM5  , 
Please, in the pic below there's a guide, how to read the status of the AMP from the RS232.
   
1- write '?xx' (xx is the number of the zone) 
2- after I write  it, I will receive  a reply command that contains 23 characters 
 I want to take two characters from that string for example (12,13) and write that value in a 1byte virtual object ;
Could you help me to do that?