Delta Electronics VFD-G manual RTU mode Command message, ASCII mode

RTU mode: Command message:

ADR	01H
CMD	08H
data	00H
Starting address	00H
data	17H
	70H
CRC CHK LOW	EEH
CRC CHK HIGH	EFH

Response message:
ADR	01H
CMD 1	08H
data	00H
Starting address	00H
data	17H
	70H
CRC CHK LOW	EEH
CRC CHK HIGH	EFH

Chapter 4 Parameters

Error response message

ADR	01H
CMD 1	88H
Error code	02
CRC CHK LOW	E0H
CRC CHK	6DH
HIGH

●Command code: 10H, write continuous words

For example, modify multi-step speed setting of AC drive (address 01H)

05-00=50.00(1388H)，05-01=40.00(0FA0H)

ASCII mode:

Command message:

STX	‘:’
ADR 1	‘0’
ADR 0	‘1’
CMD 1	‘1’
CMD 0	‘0’
Data	‘0’
Starting	‘5’
address	‘0’
	‘0’
Number	‘0’
Of	‘0’
data	‘0’
(Word)	‘2’
Number of	‘0’
data (Byte)	‘4’
The first	‘1’
data	‘3’
	‘8’
	‘8’
The second	‘0’
data	‘F’
	‘A’
	‘0’

Response message:

STX	‘:’
ADR 1	‘0’
ADR 0	‘1’
CMD 1	‘1’
CMD 0	‘0’
Data	‘0’
address	‘5’
	‘0’
	‘0’
Number	‘0’
Of	‘0’
data	‘0’
(Word)	‘2’
LRC CHK 1	‘E’
LRCCHK 0	‘8’
END 1	CR
END 0	LF

Error response message

STX	‘:’
ADR 1	‘0’
ADR 0	‘1’
CMD 1	‘9’
CMD 0	‘0’
Error	‘0’
code	‘2’
LRC CHK 0	‘6’
LRC CHK 1	‘D’
END 1	CR
END 0	LF

Revision July 2008, EG03, SW V1.06 4-77