Mitsubishi Electric MELSEC iQ-R Series User Manual page 295

Conditions under which auto logging does not start
Doing any of the following operations once auto logging is completed does not start auto logging:
• Turn off and on the power
• Reset
• STOP to RUN state
If data logging is in progress before the SD memory card with the auto logging setting is inserted, auto logging does not start
as well.
Behavior of auto logging at the time of a transition to RUN
If some, not all, of data logging sessions configured using auto logging have been completed when entering into the RUN
mode, only the uncompleted data logging sessions are started.
Behavior of auto logging that occurs when an error is generated
When an error is generated, auto logging behaves as follows:
■When an error is generated at the start of auto logging (Registration of the data logging
settings has failed.)
If auto logging cannot be started (registration has failed), it behaves in the same way as when it is completed.
■When an error has occurred during the execution of auto logging
An error that occurs during the execution of auto logging does not constitute the auto logging completion condition since it
does not prevent data logging from being resumed. If such an error is resulting from an online change during the execution of
auto logging, however, it constitutes the auto logging completion condition because it prevents data logging from being
* 1
resumed.
*1 Applies only when "When all data loggings stop" is selected as part of the auto logging completion condition.
In redundant mode
• The auto logging function cannot be used in the standby system. Even though an SD memory card that stores the data
logging setting file for which the auto logging function has been enabled is inserted, the data logging is not started
automatically.
• When the systems are switched during auto logging, the auto logging is completed.
20 DATA LOGGING FUNCTION
20.11 Auto Logging
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