Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 362

7 APPLICATION FUNCTIONS
Control system
(system A)
Redundant Normal
CPU station
Q25H Control
CPU station
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(1) Configuring a MELSECNET/H network including a redundant
system
When configuring a MELSECNET/H network including a redundant system or
when connecting a redundant system to an existing MELSECNET/H, follow the
restrictions shown below.
(a) When configuring a new MELSECNET/H network including a redundant
system
To configure a new MELSECNET/H network including a redundant system,
use the following network modules and GX Developer.
Standby system
(system B)
Redundant
CPU
Tracking cable
Q25H
[Setting of the redundant CPUs]
1) Install a network module of function version D or
later to each of the redundant CPUs.
2) Set the parameters for the redundant system using
GX Developer of version 8.18U or later.
Normal
station
Normal
CPU station
[Setting when using a CPU other than the
redundant CPUs as the control station]
1) Use a network module of function version D or later
for the control station.
2) Set the parameters for the control station using GX
Developer of version 8.18U or later.
MELSEC-Q
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