Filter
Top Products
Chapter 4 Parameters|
Revision August 2008, 2ELE, V1.02 4-89
(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:
Response message:
STX ‘:’ STX ‘:’
‘0’ ‘0’
Address
‘1’
Address
‘1’
‘0’ ‘0’
Function
‘3’
Function
‘3’
‘2’ ‘0’
‘1’
Number of data
(Count by byte)
‘4’
‘0’ ‘1’
Starting data
address
‘2’ ‘7’
‘0’ ‘7’
‘0’
Content of starting
address
2102H
‘0’
‘0’ ‘0’
Number of data
(count by word)
‘2’ ‘0’
‘D’ ‘0’
LRC Check
‘7’
Content of address
2103H
‘0’
CR ‘7’
END
LF
LRC Check
‘1’
CR
END
LF
RTU mode:
Command message: Response message:
Address 01H Address 01H
Function 03H Function 03H
21H
Starting data
address
02H
Number of data
(count by byte)
04H
00H 17H Number of data
(count by word)
02H
Content of address
2102H
70H