Mitsubishi Electric MELSEC iQ-R Series User Manual page 57

■Folder switching
Folder switching is changing the subfolders that store the saved files.
A subfolder is switched with the specified conditions.
Up to 256 subfolder are stored in the SD memory card. If it exceeds 256 then the old folders will be deleted sequentially.
If, because of the specified number of files that can be saved, a file in the subfolder has been deleted, the entire subfolder will
be deleted.
When sequential numbers are added to a subfolder, an 8-digit sequentially numbered folder is created, and an 8-digit
sequential number is always added to the saved file name.
The sequential number to be added to the subfolders will be the sequential number of the saved files that are initially stored in
a subfolder.
SD memory card
The 8-digit sequential number added to a subfolder and a saved file are not cleared even if the settings are updated.
To clear the added 8-digit sequential number, either change the name of the setting type folder or clear the logging file on the
"Diagnostics" screen.
In the following timing, a folder is switched only once apart from the specified folder switching conditions.
• If settings are updated after a data logging setting is added.
• If the setting type folder name, which stores the subfolder, is changed by configured data logging settings.
If the subfolders created at the above given times are deleted in the file browser or FTP, a subfolder will be
created when the file is switched or when the logging file is created.
■Folder switching timing
Folder switching timing can be specified from the following.
• Data conditions (comparison)
• Data conditions (value changes)
• Fixed cycle
• Time interval specification
• Time specification
• At module startup
*1 Since the conditions are judged based on the data sampled at the specified sampling interval, a trigger will not be detected if the
condition is not satisfied at the time of data sampling.
Up to 8 conditions can be combined. However, up to 10 conditions can be combined when combining the trigger condition,
period specification, and file switching timing. When the high speed sampling is specified in the sampling method, the number
of conditions that can be specified differs. For the number of conditions that can be specified, refer to the following:
MELSEC iQ-R High Speed Data Logger Module User's Manual (Startup)
When the file switching timing and the folder switching timing are satisfied at the same time, the folder is switched first, then
the file is switched later. Even if the folder switching timing is satisfied and the file switching timing is not satisfied, the
switching order will be the same.
If the subfolder name created at the time of folder switching becomes the same name as the folder name already exists, the
sequential number (1, 2) will be added to the end of the folder name, then the INFO LED will turn ON.
Setting type folder
LOGGING
*1
*1
Sequential folder
LOG01
00000001
00000101
Saved files with sequential
number
00000001
.CSV
00000101
.CSV
1 FUNCTION
1.1 Data Logging Function
1
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