Subdirectories can be used for a more structured storage of the data files. For every option and combination you choose, an example of the path is given immediately in blue letters.

None

The files are stored in the path specified in Base directory.

Hour, day, week or month based

Further subdirectories are added to the path specified as base directory. These contain parts of a complete file series. The names of the subdirectories are automatically derived from the date and/or time, depending on your selection. Each subdirectory then contains those files that were recorded in the relevant period of time.

The format of the subdirectories follows the pattern

• yymmddhh or yyyymmddhh for an hourly, daily or month-based setup

• yyww for a week-based setup

A "daily" subfolder, for example, would be named as follows: 050221 for February 21, 2005. The next "Daily" folder would then be 050222 and so on.

In case of a "Weekly" storage type, the folders would be named according to the calendar week number. For determining the week number, the Windows calendar is used. Since the week number may vary depending on region and country, several parameters need to be set:

• First day of week (e. g. Germany = Monday, USA = Sunday)

• Start time of week (the time at which the first day of the new week begins)

• First week of year (the week around January 1, the first complete week of the year or the week with four days in the new year).

You should adjust these settings to your regional conditions in order to get a proper week counting.

Maximum subdirectories

This setting is only relevant if a subdirectory organization was selected. It determines the maximum number of subdirectories according to the number of hours, days or months in the base directory.

Example:

"Hourly" organization, number of subdirectories = 2; up to two folders are created (these contain the file series); when the second hour has passed, a third folder is initially created; however, the first folder with all its contents will be deleted automatically, so that only two folders exist.

Use multiple levels of subdirectories

Check this option if you prefer separate subdirectories for year, month, week, day and hour.

The format of the subdirectories then follows the pattern

• (yy)yy\mm\dd\hh for an hour-, day- or month-based organization

• (yy)yy\ww for a week-based organization

Restart file number when subdirectory changes

If this option is enabled, the file number will start again at 0 in every new subdirectory.

Example:

If the length of a data file is set to 1 hour with the storage type set to "Daily", you can use the file numbering for naming the file. Enable the option for resetting the file number in order to browse every "daily" subdirectory for file names ranging from xyz_0 to xyz_23.