RS232 Protocol NSL-4601
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Cmd
Start command is 0xE0.
Length
Total command length.
Data1(Reserved)
Reserved part.
Data2
(Adjust value)
Adjust value. (0 ~ 100)
Check Sum
Check Sum = Cmd+Data1+…+DataN(N=2)
Ack/Nack
Ack : hexa 0x55 is used ,
The monitor received a valid command and was able
to immediately process the command within given
timeout conditions.
Nack : hexa 0xAA is used.
The monitor received incorrect check sum.
Skip
Case1: Received correct check sum but ID is not
match.
Case2: Received correct check sum but start
command didn’t received yet(the monitor is not auto
calibration mode).