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MELSEC-Q
7 APPLICATION FUNCTIONS
7.11.4 Access function by specifying the control system or standby system
This function is for making access to the Redundant system by specifying the control
system or standby system using GX Developer or other methods. By using this
function, access to the control system is enabled even after system switching occurs
due to error.
Power
supply
QnPRHCPU
QJ71
LP21
Link cable
Tracking cable
Power
supply
QJ71
E71
Power
supply
QnPRHCPU QJ71
LP21
QJ72
LP25
GX Developer
QnPRHCPU can be accessed b
y
specif
y
in
g
either the control s
y
stem or standb
y
s
y
stem
Control system Standby system
System A System B
The settings on the request source (GX Developer) are as follows.
Specify the control system, standby system, system A, or system B on the connection
setup screen in the online menu.
Specify the control system,
standby system, system A,
or system B.
REMARKS
For the details of the GX Developer operation, refer to the operation manual of GX
Developer.