PC to CPU:
'STX' 'ADR' 'o' index10er index1er_value 'CHK' 'ETX'
'o'
ASCII-Code 0x6F OR 0x80 = 0xEF
Index10er
A two-digit number of index - compare the service expression
Index1er
per byte in ASCII OR 0x80
_
blank = 0x20 OR 0x80 = 0xA0
value
'1' or '0' correspond to ON or OFF
Example 1:
Index 9
Index10er = '0' = 0x30 OR 0x80 = 0xB0
Index1er = '9' = 0x39 OR 0x80 = 0xB9
The index must be greater than 3, the maximum is conditioned of the configuration of the chamber
Example 2:
index 7 turn on: ADR = 1
String =
0x02 0x81 0xEF 0xB0 0xB7 0xA0 0xB1 0xF8 0x03 (9 Bytes)
CPU to PC
'STX' 'ADR' 'o' Index10er Index1er 'CHK' 'ETX'
'o'
ASCII-Code 0x6F OR 0x80 = 0xEF