Smart Avi SM-RS232 - Manual (Page 13)

13
www.smartavi.com
How to properly test an RS-232 connection between a PC and most SmartAVI RS-232 compliant devices
After you have established a connection to your device use the
following commands: 





 












  
 
  



  
  
 
 
 
 



 
 
 
 
 



  

 
<CHK> stands for CHECKSUM: the <CHK> value is
calculated by performing an XOR of the full com-
mand string. For example: //F00M12I03 will XOR
to the hexadecimal value 0x42, therefore the value
of <CHK> is 0x42.
CALCULATING THE <CHK>
IMPORTANT
RS-232 Specifications (continued)