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FX
-ENET-ADP User's Manual
3U
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
(Data name)
External device
side
(Example)
(Data name)
PLC side
(Example)
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.
66
Head device
*
L
H
L
-
-
00
FF
0A
00
64
00
00
00
H
H
H
H
H
H
H
-
-
H
20
4D
0C
00
H
H
H
H
H
*
80
H
1
0
Status
of M101
Status
Status
of M100
of M102
7 Communication Using MC Protocol
7.5 Device Memory Read/Write
Data for the number
of designed device
points
Characters for the
number of device
points
00
10
10
10
10
10
10
H
H
H
H
H
H
H
1
1
1
1
1
0
0
0
0
0
Status
Status
Status
Status
Status
of M103
of M105
of M107
of M109
of M111
Status
Status
Status
Status
of M104
of M106
of M108
of M110
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Troubleshooting
