Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 71

3 SPECIFICATIONS
I/O master station
1M 1
P
X Y
0
to Actual I/O
6FF
X1000
to
X11FF
X1200
to
X12FF
3 - 17
The following figure shows an example of the LX/LY communication assignments
between the 1M 1 station (I/O master station) and the 1N
P
When the 1M 1 station turns on Y1000, X1000 of the 1N
P
Also, when the 1N
Y1000
X1200
Y1000
to
Y11FF
Y1200
to
Y12FF
POINT
1) Any station can be set as an I/O master station regardless of whether the
station is a control or normal station.
2) The range in which the X/Y signals are set for the LX/LY communication is the
device range starting from the end of the actual I/O of the host (X/Y1000 or
thereafter is recommended). Assign these device ranges so that they do not
overlap in the following situations:
• When using multiple network modules (CC-Link IE Controller Network, CC-
Link IE Field Network, MELSECNET/H, CC-Link, etc.)
• When setting two I/O master stations.
3 station turns on Y1000, X1200 of the 1M
S
X1000
Y1000
MELSEC-Q
2 and 1N 3 stations.
S S
2 station turns on.
S
1 station turns on.
P
1N 2
S
X
Y
0
Actual I/O
to
8FF
X1000 Y1000
to to
X11FF Y11FF
1N 3
S
X Y
0
Actual I/O
to
7FF
X1000 Y1000
to to
X10FF Y10FF
3 - 17