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Chapter 5 Data Log Function
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5.3.3 Data Save Condition
The data log function classifies the data save conditions and intervals as follows, depending on the parameter setting.
(1) Regular Save
The following are condition setting items for Regular Save.
Setting Operation Note
Save at every scan Data are saved after End of each scan
Save at certain interval
Data are saved after End of each scan after lapse of set time
1) Save at every scan
When using the scan interval save method, data are collected after END of each scan. If the volume of stored data is
large, a scan watchdog timer error may occur. Please be mindful of the scan watchdog setting of the basic
parameter. Collecting data exceeding 4 words/10ms or fast save time may cause data loss.
2) Designation Cycle Save
Save data when a set interval arrives. An interval faster than the parameter set the same as the Scan Save may
cause data loss.
Note
(1) Although data collection is performed at the interval set by the parameter, file save into the SD memory is
performed by scan END.
(2) Each group has its buffer area, where certain data are collected an then saved into the SD memory.