Delta VP3000 Series - Page 260

Chapter 6 Drive Communication Network｜VP3000
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3. 03H: Read data from register
Example: Reading two continuous data from register address 2102H. AMD address is 01H.
ASCII mode:
Command Message
Response Message
STX
‘:’
STX
‘:’
Address (station)
‘0’
Address
‘0’
‘1’
‘1’
Function
‘0’
Function
‘0’
‘3’
‘3’
Starting register (address)
‘2’
Number of register
(count by byte)
‘0’
‘1’
‘4’
‘0’
Content of starting register
2102H
‘1’
‘2’
‘7’
Number of register
(count by word)
‘0’
‘7’
‘0’
‘0’
‘0’
Content of register 2103H
‘0’
‘2’
‘0’
LRC Check
‘D’
‘0’
‘7’
‘0’
END
CR
LRC Check
‘7’
LF
‘1’
END
CR
LF
RTU mode:
Command Message
Response Message
Address
01H
Address
01H
Function
03H
Function
03H
Starting data register
21H
Number of register
(count by byte)
04H
02H
Number of register
(count by word)
00H
Content of register
address 2102H
17H
02H
70H
CRC Check Low
6FH
Content of register
address 2103H
00H
CRC Check High
F7H
00H
CRC Check Low
FEH
CRC Check High
5CH