Mitsubishi Electric FX3U-ENET-ADP, Руководство пользователя

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7 Communication Using MC Protocol
66
FX
3U
-ENET-ADP User's Manual
7.5 Device Memory Read/Write
7.5.2 Batch read in bit units (command: 00)
The examples shown in this section explain the command/response format when batch-reading bit device
memory.
For more details on the order and content of data items of the areas marked by " * " shown in the control
procedure diagram, refer to Subsection 7.3.2.
[Control procedure]
Reading the on/off status of M100 to M111 of the PLC on which the Ethernet adapter is loaded.
1) Communication in binary code
Caution
• Use the designation "00H" when the number of device points is 256 points.
• If the number of device points designated is an odd number, 4 bits of dummy data (0H) will be added to the
response data. For example, if three points are read, data for four points is returned. The last 4 bits are
dummy data.
0A
H
64
H
00
H
Subheader
PC No.
N
um
be
r of
d
ev
ice
po
in
ts
Head device
(Data name)
External device
side
(Example)
(Data name)
PLC side
(Example)
00
H
FF
H
00
H
00
H
00
H
20
H
4D
H
0C
H
00
H
80
H
Subheader
Complete code
00
H
10
H
10
H
10
H
10
H
10
H
10
H
Data for the number
of designed device
points
Characters for the
number of device
points
0 1 0 1 0 1 0 1 0 1 0 1
Status
of M100
Status
of M101
Status
of M102
Status
of M103
Status
of M104
Status
of M105
Status
of M106
Status
of M107
Status
of M108
Status
of M109
Status
of M110
Status
of M111
Monitoring
timer
H L L - - - - H
*
*