Mitsubishi QJ71C24/-R2 User Manual page 169
Melsec system q programmable logic controllers, serial communication modules gx configurator-sc
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Also See for QJ71C24/-R2:
- Reference manual (532 pages) ,
- User manual (442 pages) ,
- User manual (396 pages)
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7 DATA COMMUNICATIONS USING BIDIRECTIONAL PROTOCOL
Q series C24
Transmission area
(buffer memory)
Transmission
(00
data count
B
designation area
(42
D
(44
Transmission
F
(46
data designation
1
area
(31
3
(33
7 - 18
(2) Transmission data arrangement
The following example shows an arrangement of the transmission data to be sent
to the external device when storing it in the transmission area.
(Example) When "ABCDEFG123" is sent:
5
)
(05
)
H
H
Sum
A
check
)
(41
)
code
H
H
C
H
L
)
(43
)
H
H
02
47
H
H
E
)
(45
)
H
H
G
)
(47
)
H
H
2
)
(32
)
H
H
Transmission data (response message)
3
2
1
G
F
E
D
33
32
31
47
46
45
44
H
H
H
H
H
H
H
Receive data (response message)
ACK
06
H
(Normal completion)
Data
C
B
A
length
(0005
)
ENQ
H
H
L
43
42
41
00
05
H
H
H
H
H
MELSEC-Q
External device
7 - 18
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