7 Communication Using MC Protocol
69
FX3U-ENET-ADP User's Manual
1
Introduction
2
Specification
3
System
Configuration
4
Installation
5
Wiring
6
Introduction of
Functions
7
Communication
Using
MC Protocol
8
The Operation
of GX Works2
9
Troubleshooting
A
List of Special
Devices
7.5 Device Memory Read/Write
2) Communication in ASCII code
Caution
If the number of device points to be set is an odd number, add one byte of dummy data (30H) at the end of
data written. For example, when writing three points, add the dummy data (30H) 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
41
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
-
--
-
--------
----
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
*
*
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