Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 192

5 PARAMETER SETTINGS
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[Setting example]
Control Normal
station
station
Q25HCPU QJ71
LP21
1M 1
P
Network No. 1
1N 8 to 1N 2
S S
To use the 3N 2 station as the standby station for the normal station 2N
S
the figure above, select "Module 2" in the "Standby station compatible module" window
below.
POINT
Since the Basic model QCPU, Redundant CPU, Universal model QCPU, and
safety CPU are not compatible with a simple dual-structured system, this setting is
not available.
Standby
station
QJ71 QJ71
BR11 BR11
2N 2 3N 2
S S
Regular network (network No. 2)
Standby network (network No. 3)
2M 1 3M 1
P P
MELSEC-Q
2N 5 3N
to
S S
S
5
2 as shown in
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