Mitsubishi Electric MELSEC-Q Series - Page 511

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CHAPTER 10 TROUBLESHOOTING
10
10.1 Troubleshooting Flow 10.1.9 Data link is disabled in the redundant system
(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.
Cyclic data are lost or momentarily lost
at the time of system switching.
Yes
No
Refer to the troubleshooting 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 Programming tool.
If the problem persists, create a new project and
execute the writing again.