Mitsubishi MELSEC L Series User Manual page 296
Communication module
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Also See for MELSEC L Series:
- User manual (418 pages) ,
- Programming manual (1296 pages) ,
- Reference manual (532 pages)
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External
Q series C24
device
(Transparent code designation)
(Arbitrary data section only)
Data
transmission
Adding
additional code
Response
reception
Yes
(Error code section only)
No
External
device
Head data
Arbitrary data section
E
Data length
N
Q
D
L
H
L
E
05
10
02
00
H
H
H
H
(For 10
(For 02
External
device
Head data
Data length
E
N
Q
L
0
2
0
05
30
32
30
H
H
H
H
12 - 15
3) If a send transparent code is designated, additional code data is added
preceding the transparent code/additional code data for the arbitrary data
section, and is then sent.
No
Adding transmission
Yes
control code (ENQ)
Deleting transmission
Deleting
control code
additional code
(ACK/NAK)
(Example) The following example shows the data arrangement when
Sum
Data section
check
code
D
L
H
L
E
12
10
02
3A
BC
0C
01
H
H
H
H
H
H
H
Additional code
)
H
Transparent code
)
H
Arbitrary data section
Data section
D
L
H
1
2
0
2
3
E
0
30
31
32
30
32
33
10
41
H
H
H
H
H
H
H
(For 10
12 TRANSPARENT CODES AND ADDITIONAL CODES
(Sum check code setting)
Calculation and check of
sum check code
data is sent and received. (The communication section of the
response message is omitted.)
(When the ASCII-BIN conversion is not performed)
Send
Receive
(When the ASCII-BIN conversion is performed)
Send
Sum
check
code
L
H
A
B
C
Receive
42
43
80
02
H
H
H
H
H
Transparent code
(For 41
)
H
Additional code
)
H
(ASCII-BIN conversion designation)
No
ASCII-BIN conversion of
Yes
transmission data count
and transmission data
ASCII-BIN conversion
Yes
of error code
No
Q series C24
Buffer memory (transmission area/reception area)
(H)
(L)
(0002
)
H
00
, 02
H
(0212
)
H
02
, 12
H
(BC3A
)
H
BC
, 3A
H
(The data count is in word units)
Q series C24
Buffer memory (transmission area/reception area)
(H)
(L)
(0002
)
H
00
, 02
H
H
(0212
)
H
02
, 12
H
H
(BC3A
)
H
BC
, 3A
H
(The data count is in word units)
No
Buffer memory
Transmission
Yes
area
Transmission
result storage
area
Transmission data
count/Receive data
H
count
Transmission data/
H
receive data
H
Transmission data
count/Receive data
count
Transmission data/
receive data
H
12 - 15
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