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VFD-F Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-50
z Command code: 03H, read N words. The maximum value of N is 10. For example,
reading parameters 01-01 and 01-02 from address 01H.
ASCII mode:
Command message: Response message: Error response message
STX ‘:’ STX ‘:’ STX ‘:’
ADR 1 ‘0’ ADR 1 ‘0’ ADR 1 ‘0’
ADR 0 ‘1’ ADR 0 ‘1’ ADR 0 ‘1’
CMD 1 ‘0’ CMD 1 ‘0’ CMD 1 ‘8’
CMD 0 ‘3’ CMD 0 ‘3’ CMD 0 ‘3’
Starting ‘0’ Number of ‘0’ Error code ‘0’
data ‘1’ data(Word) ‘4’ ‘2’
address ‘0’ Data ‘1’ LRC CHK 0 ‘6’
‘1’ of ‘7’ LRC CHK 1 ‘D’
Number ‘0’ 0101H ‘7’ END 1 CR
of ‘0’ ‘0’ END 0 LF
data ‘0’ Data ‘0’
(Word) ‘2’ of ‘8’
LRC CHK 1 ‘D’ 0102H ‘9’
LRC CHK 0 ‘7’ ‘8’
END 1 CR LRC CHK 1 ‘D’
END 0 LF LRC CHK 0 ‘1’
END 1 CR
END 0 LF
RTU mode:
Command message: Response message: Error response message
ADR 01H ADR 01H ADR 01H
CMD 03H CMD 03H CMD 90H
Starting data 01H Number of data 04H Error code 02H
address 01H data 0101H 17H CRC CHK LOW CDH
Number of data 00H’ content 70H CRC CHK HIGH C1H
(Word) 02H 0102H 08H
CRC CHK Low 94H content 98H
CRC CHK High 37H CRC CHK LOW F8H
CRC CHK HIGH 36H