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MELSEC-Q
7 APPLICATION FUNCTIONS
3) When connecting a redundant system as normal stations to a
MELSECNET/10 including an AnUCPU or QnACPU station acting as
a control station
The network module installed with an AnUCPU or QnACPU cannot be
set as a control station if a redundant system using Q4ARCPUs or
redundant CPUs exists in the network.
Change the network module status of the AnCPU or QnACPU to a
normal station, and connect the redundant system as the control
station. (Refer to (2) (a) in this section.)
Standby system
(system B)
Normal
station
Q25H
CPU
QnA
CPU
Control system
(system A)
Power supply
module
Redundant
CPU
Control
station
Tracking cable
AnU
CPU
Q4AR
CPU
Q4AR
CPU
[Setting of the redundant CPUs]
1) Install network modules of function version D or later
to the redundant CPUs, and set one of them as a
control station.
2) Set the parameters for the redundant system using
GX Developer of version 8.18U or later.
[Setting of the previous control station]
1) Since the network module installed with an AnUCPU or
QnACPU cannot be a control station, change the status
to a normal station.
Power supply
module
Redundant
CPU
Power supply
module
Normal
station
Power supply
module
Normal
station
Power supply
module
Normal
station
Normal
station
Power supply
module
Power supply
module
Normal
station
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