Delta VFD-EL-W Series - Page 130

Chapter 4 Parameters｜VFD-EL-W
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3.2 Communication Address (Address)
00H: Broadcast to all AC motor drives
01H: AC motor drive at address 01
0FH: AC motor drive at address 15
10H: AC motor drive at address 16, and so on up to 254 (FEH).
3.3 Function (Function code) and DATA (Data characters)
03H: Read data from register
06H: Write single register
08H: Loop detection
Function code 03H: read data from registers (multi-read up to 20 data)
Example: Reading two continuous data from register address 2102H. AMD address is 01H.
ASCII mode:
Command Message
Response Message
STX
‘:’
STX
‘:’
Address
‘0’
Address
‘0’
‘1’
‘1’
Function
‘0’
Function
‘0’
‘3’
‘3’
Starting address
‘2’
Number of data
(count by byte)
‘0’
‘1’
‘4’
‘0’
Content of starting address
2102H
‘1’
‘2’
‘7’
Number of data
(count by word)
‘0’
‘7’
‘0’
‘0’
‘0’
Content of address 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 address
21H
Number of data
(count by byte)
04H