Chapter 5 Parameters|VFD-B Series
06H: write single register
08H: loop detection
10H: write multiple registers
The available function codes and examples for VFD-B are described as follows:
(1) 03H: multi read, read data from registers.
Example: reading continuous 2 data from register address 2102H, AMD address is 01H.
ASCII mode:
Command message:
STX
‘:’
Address
‘0’
‘1’
‘0’
Function
‘3’
‘2’
Starting data
‘1’
address
‘0’
‘2’
‘0’
Number of data
‘0’
(count by word)
‘0’
‘2’
LRC Check
‘D’
‘7’
END
CR
LF
Response message:
STX
‘:’
Address
‘0’
‘1’
‘0’
Function
‘3’
Number of data
‘0’
(Count by byte)
‘4’
Content of starting
address
2102H
‘1’
‘7’
‘7’
‘0’
‘0’
Content of address ‘0’
2103H
‘0’
‘0’
LRC Check
‘7’
‘1’
END
CR
LF
RTU mode:
Command message:
Address
01H
Function
03H
Starting data
21H
address
02H
Number of data
00H
(count by word)
02H
CRC CHK Low
6FH
CRC CHK High
F7H
Response message:
Address
Function
Number of data
(count by byte)
Content of address
2102H
Content of address
2103H
CRC CHK Low
CRC CHK High
01H
03H
04H
17H
70H
00H
00H
FEH
5CH
(2) 06H: single write, write single data to register.
Example: writing data 6000(1770H) to register 0100H. AMD address is 01H.
5-86
Revision July 2008, BE16, SW V4.08 & V5.00