03H: Multi Read, Read Data From Registers; 06H: Single Write, Write Single Data To Register - Delta VFD-B User Manual

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:
RTU mode:
Command message:

(2) 06H: single write, write single data to register.

Example: writing data 6000(1770H) to register 0100H. AMD address is 01H.
5-86
Command message:
STX
Address
Function
Starting data
address
Number of data
(count by word)
LRC Check
END
Address
Function
Starting data
address
Number of data
(count by word)
CRC CHK Low
CRC CHK High
Response message:
':'
'0'
'1'
'0'
'3'
'2'
'1'
'0'
'2'
'0'
'0'
'0'
'2'
'D'
'7'
CR
LF
Response message:
01H
03H
21H
02H
00H
02H
6FH
F7H
Revision July 2008, BE16, SW V4.08 & V5.00
STX
Address
Function
Number of data
(Count by byte)
Content of starting
address
2102H
Content of address
2103H
LRC Check
END
Address
Function
Number of data
(count by byte)
Content of address
2102H
Content of address
2103H
CRC CHK Low
CRC CHK High
':'
'0'
'1'
'0'
'3'
'0'
'4'
'1'
'7'
'7'
'0'
'0'
'0'
'0'
'0'
'7'
'1'
CR
LF
01H
03H
04H
17H
70H
00H
00H
FEH
5CH