Delta Electronics AC Drive VFD-F Series User Manual page 83

VFD-F Series
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:
STX
ADR 1
ADR 0
CMD 1
CMD 0
Starting
data
address
Number
of
data
(Word)
LRC CHK 1
LRC CHK 0
END 1
END 0
RTU mode:
Command message:
ADR
CMD
Starting data
address
Number of data 00H'
(Word)
CRC CHK Low
CRC CHK High
Response message:
':' STX
'0' ADR 1
'1' ADR 0
'0' CMD 1
'3' CMD 0
'0' Number of
'1' data(Word)
'0' Data
'1' of
'0' 0101H
'0'
'0' Data
'2' of
'D' 0102H
'7'
CR LRC CHK 1
LF LRC CHK 0
END 1
END 0
Response message:
01H ADR
03H CMD
01H Number of data
01H data 0101H
content
02H 0102H
94H content
37H CRC CHK LOW
CRC CHK HIGH
5-50
Error response message
':' STX
'0' ADR 1
'1' ADR 0
'0' CMD 1
'3' CMD 0
'0' Error code
'4'
'1' LRC CHK 0
'7' LRC CHK 1
'7' END 1
'0' END 0
'0'
'8'
'9'
'8'
'D'
'1'
CR
LF
Error response message
01H ADR
03H CMD
04H Error code
17H CRC CHK LOW
70H CRC CHK HIGH
08H
98H
F8H
36H
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
':'
'0'
'1'
'8'
'3'
'0'
'2'
'6'
'D'
CR
LF
01H
90H
02H
CDH
C1H