34 TROUBLESHOOTING BY SYMPTOM
34.9 When the Operating Status of the CPU Module Cannot Be Changed
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34.9 When the Operating Status of the CPU Module
Cannot Be Changed
Check the following:
If the CPU module operating status cannot be changed even after the items above are checked and the actions are taken, the
possible cause is a hardware failure. Please consult your local Mitsubishi representative.
34.10 When the Ethernet Function Cannot Be Used
For troubleshooting, refer to the following:
MELSEC iQ-R Ethernet User's Manual (Application)
34.11 When Cyclic Data Is Turned Off at the Time of
System Switching
When cyclic data is turned off or temporarily turned off at the time of system switching, check the following.
Check item Action
Check if a stop error has been occurred. Check the error cause using an engineering tool and eliminate the error
cause.
Check if the online change processing is left suspended. Execute the online change again.
Check item Action
Check if the own station send range is
the tracking range.
Check that the cyclic data in the send range is set to be transferred. ( Page 395 Tracking transfer setting)
Check if the interlock used in the program
has no errors.
Take one of the following measures.
■Modify the program so that the interlock is triggered using the following labels. ( MELSEC iQ-R CC-Link IE
Field Network User's Manual (Application))
• 'Own station data link error status' (SB0049)
• 'Own station master/sub master function operating status' (SB004E)
• 'Each station redundant system data link error status' (SB01B0)
• 'Redundant system master station data link error status' (SB01B1)
• 'Redundant system station number 0 data link error status' (SB01BF)
• 'Each station redundant system data link status' (SW01B0 to SW01B7)
■Check that "Setting to Wait Receiving Cyclic Data after Switching System" of the CPU parameter is enabled. If
the setting is disabled, enable it. ( Page 427 Setting to wait cyclic data receive after system switching)
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