Delta VFD-L Series

5
VFD-L Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-45
RTU mode:
C
ommand message:
R
esponse message:
ADR 01H ADR 01H
CMD 03H CMD 03H
21H Starting data
address
02H
Number of data
(count by byte)
04H
00H 17H Number of data
(count by word
)
02H
Content of data
address 2102H
70H
CRC CHK Low 6FH 00H
CRC CHK High F7H
Content of data
address 2103H
00H
CRC CHK Low FEH
CRC CHK High 5CH
Command code: 06H, write 1 word
For example, writing 6000(1770H) to address 0100H of AMD with address 01H.
ASCII mode:
C
ommand message:
R
esponse message:
STX ‘:’ STX ‘:’
ADR 1 ‘0’ ADR 1 ‘0’
ADR 0 ‘1’ ADR 0 ‘1’
CMD 1 ‘0’ CMD 1 ‘0’
CMD 0 ‘6’ CMD 0 ‘6’
Data dress ‘0’ Data address ‘0’
‘1’ ‘1’
‘0’ ‘0’
‘0’ ‘0’
‘1’ Data content ‘1’
‘7’ ‘7’
‘7’ ‘7’
‘0’ ‘0’
LRC CHK 1 ‘7’ LRC CHK 1 ‘7’
LRC CHK 0 ‘1’ LRC CHK 0 ‘1’
END 1 CR END 1 CR
END 0 LF END 0 LF