Configuration

After selecting a Ufl Exporter instance, the following configuration will appear:

Figure 3: Ufl Exporter configuration

• Destination folder: Specifies the path where CSV files will be saved to. By default, this value is blank, meaning that files will be automatically saved to /N3uron/data/UflInstaceName. Alternatively, users can set this value to an absolute path in order to save files to a different directory. 

• Buffer limit: Specifies the maximum number of events that will be stored in the in-memory buffer before becoming exported files. When this limit is reached, a file will automatically be generated even if the Export rate time has not lapsed. The default value is set to 1000 events. The minimum value is 1 event.
• Export rate: Specifies the file generation rate, displayed in milliseconds. After this time is lapsed, all events in the buffer will automatically be stored in the CSV file. The minimum value is set to 5000 milliseconds, and the default value is 60000 milliseconds.
• Tag naming scheme: This section is used to change how the tag path will appear in the CSV file.
  • Separator: The value of this field will be used as the path separator in the full path of any tag.
  • Prefix: This field is used to add a prefix to the tag’s full path. 

• Force storage: This section is used to force a “virtual sample” to appear in the file when the filtered tags remain unchanged.
  • Period: Specifies the time between a tag change and a new virtual sample being inserted, displayed in milliseconds. By setting this value to 0, this functionality is automatically disabled. The default value is set to 0 milliseconds.
  • Delay: Specifies the delay applied when generating new samples. This is used when there are several links and users want to avoid creating unnecessary virtual samples due to connection delays. The minimum value is set to 1000 milliseconds.
• Tag filters: Specifies one or multiple tag filters used to select which tags from the tag model will be exported to the CSV files. 

Tag filters

A tag filter is a regular expression used to select specific tags from the tag model to be exported to the CSV file. If no tag filters are created, all tags will be exported. Otherwise, only those tags matching at least one filter will be used. The following screenshot shows how to configure a tag filter:

Figure 4: Tag filter configuration

• RegEx pattern: Regular expression used to filter tags. This expression will be applied to the tag’s full path. More information about Regular Expressions can be found at RegExr.

• Ignore case: Sets the regular expression’s //i flag, instructing it to ignore the case of the text.