Delta ASD-A2-0121 Series User Manual page 606

Chapter 9 Communications
Example 2: function code 06H, write single word:
The Master issues command to the 1
sends the response message to the Master after the writing is completed. The calculation of LRC
and CRC will be described in the following sections.
ASCII Mode:
Command message (Master):
Start
Slave Address
Function
Starting data
address
Data content
LRC Check
End 1
End 0
RTU Mode:
Command message (Master):
Address
Slave Function
Starting data
address
Data content
CRC Check Low
CRC Check High
Note:
Before and after the transmission in RTU mode, 10 ms of silent interval is needed.
Slave and writes data 0064H to address 0200H. The Slave
st
':'
'0'
'1'
'0'
'6'
'0'
'2'
'0'
'0'
'0'
'0'
'6'
'4'
'9'
'3'
(0DH)(CR)
(0AH)(LF)
01H
06H
02H (High)
00H (Low)
00H (High)
64H (Low)
89H (Low)
99H (High)
Response message (Slave):
Start
Slave Address
Function
Starting data
address
Data content
LRC Check
End 1
End 0
Response message (Slave):
Address
Slave Function
Starting data
address
Data content
CRC Check Low
CRC Check High
ASDA-A2
':'
'0'
'1'
'0'
'6'
'0'
'2'
'0'
'0'
'0'
'0'
'6'
'4'
'9'
'3'
(0DH)(CR)
(0AH)(LF)
01H
06H
02H (High)
00H (Low)
00H (High)
64H (Low)
89H (Low)
99H (High)
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