Mitsubishi MELSEC Q series User Manual page 88

(3) Transfer data overflow
If a data logging file with the same setting No. as a standby file is saved, the standby file will not be transferred.
Ex. When a data logging file of setting No.2 is saved while a data logging file of setting No.2 is on standby
Data logging
setting No.2
Data logging file
A data logging file
with the same
setting No. as that
of the standby file
is saved.
If transfer data overflow frequently occurs, the frequency can be reduced by taking the following actions:
• Increase the sampling interval. ( Page 115, Section 8.4.4)
• Decrease the number of sampled data. ( Page 117, Section 8.4.5)
• Decrease frequency of file switching. ( Page 127, Section 8.4.12)
If transfer data overflow still frequently occurs even after the above actions are taken, settings (e.g. "Save" and "Sampling"
settings) configured for other data logging setting Nos. should be changed. Correct settings for other data logging setting
Nos. of files during transfer processing.
86
Standby
Data logging
setting No.3
Data logging file
Last Transferred in
an orderly manner
Transfer
completed
Data logging
Data logging
setting No.1
setting No.2
Data logging file
Data logging file
The standby data logging
file enters the transfer
data overflow status.
First