LiteOn EVO600043S2D2E20F - Response Message; Example of Reading; Responding Data

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if ( wkg & 0x0001 ) {
wkg = ( wkg >> 1 ) ^ 0xa001;
}
else {
wkg = wkg >> 1;
}
}
}
return( wkg );
}
11.5.8 Response Message
Perform a CRC calculation on the response message according to the above description. The
result of the calculation should match the CRC checksum of the response message.
11.6 Example of Reading / Responding Data
The following are examples of command and response data.
Example: For the drive address 01H, To read 2 consecutive register data for the drive address
01H, the message is “starting address 2422H.
RTU Scheme:
Command Message:
Respond Message:
Address
01H
Address
01H
Function
03H
Function
03H
Starting data address
24H
Number of data
(count by byte)
04H
22H
Number of data
(count by world)
00H
Content of data
address 2422H
17H
02H
70H
CRC CHK Low
6EH
Content of data
address 2423H
00H
CRC CHK High
F1H
00H
CRC CHK Low
FEH
CRC CHK High
5CH
Function code 06H: Write one piece of data to register
Example: For the drive address 01H, 1(01H) will written to the drive internal parameter 0100H
(b1-00).