106
bit
bit
The data content
(word format)
‘ 0 ’
The data content
(word format)
‘ 0 ’
END1(CR)
0DH
‘ 0 ’
‘0’
END0(LF)
0AH
‘ 6’
‘ 6 ’
‘ 4’
‘ 4 ’
LRC
‘8’
LRC
‘8’
‘2’
‘2’
END1(CR)
0DH
END1(CR)
0DH
END0(LF)
0AH
END0(LF)
0AH
2. RTU MODE
PC -
> drive
Response -
> PC
(OK)
Response - > PC
(Error)
Address
01H
Address
01H
Address
01H
CMD
06H
CMD
06H
CMD
86H
Data
source
address
high
bit
00H
Data
source
address
high
bit
00H
Abnormal
code
03H
low
bit
13H
low
bit
13H
CRC
low bit
02H
The data content
(word format)
00H
The
data content
(word
format)
F4H
00H
CRC
high bit
61H
64H
48H
64H
CRC
low
bit
79H
CRC
low bit
79H
CRC
high
bit
E4H
CRC
high bit
E4H
7.3.3
diagnosis