Data Missing - Mitsubishi Electric MELSEC iQ-R Series User Manual

Transferring data logging files
Data logging files can be automatically transferred to an FTP server or shared folder, or mail server.
There are two methods for transferring event logging files.
• Transferring to the FTP server and shared folder (Page 94 File Transfer Function, Page 136 File transfer setting)
• Sending e-mail (Page 97 E-mail Function, Page 139 E-mail setting)
When transferring files to the FTP server and shared folder, the data logging file destination defers depending on the saved
folder specifications.
For details of each folder structure at the time of file transfer, refer to the following:
MELSEC iQ-R High Speed Data Logger Module User's Manual (Startup)
Display the previous and next files consecutively in GX LogViewer
Create file names in the dictionary order (in the order of number, symbol, alphabet, and others) by adding date and time, etc.
(Page 339 ASCII characters)
If do not create a subfolder, not only the saved files also the accumulating files are displayed on the previous and next trend
graphs consecutively.
In the following case, since the continuity of the files is not guaranteed, the previous and next trend graphs may not be
displayed properly.
• Day of the week is added at the beginning of the saved folder name or saved file name
• A setting type folder name is specified to the accumulating file without creating a subfolder
Ex.
When "123.TXT" and "A23.TXT" is compared, "123.TXT" will be treated as an old saved file because "1" = 30, "A" = 41.

Data missing

Data missing means that sampled data is lacking and not continuous.
Whether data is missing or not can be checked by the following items.
• Index information of data logging file
• Two vertical dashed-dotted lines displayed in the trend window of GX LogViewer
(GX LogViewer Version 1 Operating Manual)
Data is missing in the following cases:
: Occurs, : Does not occur
Item
*1
High speed sampling failure
*1
Processing overload
Sampling error
CPU module operation
Module operation
Data logging period
Trigger logging
Realtime trend graph
*1 INFO LED turns ON.
Description
When the high speed sampling was specified, the high speed sampling
failed because the data sampling could not catch up with the specified
sampling interval.
Page 350 Checking sampling process time
A processing overload error occurred because the data logging processing
(trigger judgement and file saving) could not catch up with the specified
sampling interval.
An error occurred in the sampling process due to the cause such as the
connection cable being disconnected.
When the high speed sampling (each scan) was specified, the control CPU
was switched from STOP to RUN.
When the high speed sampling was specified, the PLC parameter was
written to the control CPU.
The high speed data logger module settings were updated.
The high speed data logger module operation was restarted.
When a data logging period has been specified, the sampled data was not
saved to a file because they are outside the period.
The sampled data between triggers was not output to a file
The acquisition/display of GX LogViewer data did not catch up with the
specified sampling interval.
Data logging Realtime trend
graph
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1 FUNCTION
1.1 Data Logging Function
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