Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 207

■When "Data logging stop" is selected
Auto logging is assumed to be completed if all the settings or any of auto logging stops
*1 Here the term "stop" means one of the following:
 Continuous logging: When the "Number of files to be saved" setting configured in the save setting has been exceeded and data logging
has been completed.
 Trigger logging: When as much data as the number of records specified in "Number of records" has been collected, the collected data
has been written to the SD memory card, and data logging has been completed.
 When the user has operated CPU Module Logging Configuration Tool to stop data logging.
• If "When any of the data loggings stops" is selected, the behavior of any other data logging sessions than
stopped is the same as the behavior that occurs upon the elapse of the time configured using "Complete
with timer".
• When completing auto logging for continuous logging, do not select "Overwrite" for the operation at the time
when the number of files exceeds the save setting because doing so results in failure to stop data logging;
instead, select "Stop".
■When "Complete with timer" is selected
When the operating time since the start of data logging reaches the specified time, the CPU module completes auto logging
by moving all the data collected so far from the internal buffer to the SD memory card. If trigger logging has not yet collected
as much data as the number of records specified "Number of logging lines", however, the CPU module does not store any
data including the collected data.
The timer is cleared to zero when auto logging is suspended and resumed by stopping and running the CPU
module or turning off and on the CPU module or resetting it before the completion of auto logging. If auto
logging is suspended by the turning off and on of the special relay (Data logging suspend/resume flag), the
timer continues to run even while data logging is suspended.
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.
*1
.
11 DATA LOGGING FUNCTION
11.11 Auto Logging
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