10
- 12
10.1 Troubleshooting Flow
10.1.8 Data link is disabled in the redundant system
10
TROUBLESHOOTING
(3) When cyclic data are lost or momentarily lost at the time of system
switching
The following flowchart shows the procedures to be taken when cyclic data are lost or
momentarily lost at the time of system switching.
Figure 10.11 When cyclic data are lost or momentarily lost at the time of system switching
Cyclic data are lost or momentarily lost
at the time of system switching.
Yes
No
Refer to the troubleshooting section in the following
manual.
QnPRHCPU User's Manual
(Redundant System)
QnPRHCPU User's Manual
(Redundant System)
Check the tracking transfer range.
End
Are the transfer source CPU-side
devices in the own station send
range in LB/LW set within the
tracking transfer range?
Write the parameters to the programmable
controller by GX Developer.
If the problem persists, create a new project and
execute the writing again.
Summary of Contents for QJ71GP21-SX
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