LiteOn EVO 6800 Series, Руководство пользователя

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241
‘F’
‘4’
LRC Check
‘1’
‘2’
END
CR
LF
RTU Scheme:
Command Message: Respond Message:
ADR 01H ADR 01H
CMD 10H CMD 10H
Starting Address 08H Starting Address 08H
(Word) 80H (Word) 80H
Data Quantity
(Word)
Data Quantity (Byte)
00H
02H
04H
Register Written Quantity
(Word)
00H
02H
First 00H CRC Check High 42H
Storage Register 3CH CRC Check Low 40H
Second 00H
Storage Register 32H
CRC Check High DDH
CRC Check Low D6H
during a communication error
When a error occurs during communication with the drive, the drive responds to the error
code, set the highest-order byte (bit7) of command data to 1 (Function code AND 80H) and
respond to the master system to inform master system about the error. And the drive keypad
displays CE-XX (XX is the error code) as the warning message.
Example:
ASCII Scheme: RTU Scheme:
STX ‘:’ Address 01H