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MELSEC-F
WHEN COMMUNICATING DATA USING THE MC PROTOCOL9
9 - 22
(2) Communication in ASCII code
NOTE
If the number of device points to be set is an odd number, add one byte of dummy
data (30
H) at the end of data written. For example, when writing three points, add the
dummy data (30
H) at the end.
(Data name)
External device
side
(Example)
(Data name)
PLC side
(Example)
38
H
8
30
H
H
This designates to turn M50 ON
32
H
2
30
H
L
This designates to turn M51 ON
This designates to turn M60 OFF
This designates to turn M61 ON
30
H
0
HL
0
30
H
C
43
H
0
30
H
1
31
H
1
31
H
1
31
H
0
30
H
0
30
H
F
46
H
30
H
0
30
H
0
30
H
0
30
H
A
F
46
H
HLH L
32
H
22
32
H
H
32
H
2
44
H
D
34
H
4
33
H
3
30
H
0
30
H
0
30
H
0
30
H
0
30
H
0
30
H
0
30
H
0
L
00
-
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Subheader
Complete code
Subheader
PC No.
Number of
device points
Head device
Monitoring
timer
Data for the number
of designed device points
Characters for the
number of device points