About Extracting Data from an eDNA Server

The Historian ETL eDNA Extract tool extracts data as follows:
  1. Extracts data related to tags into text files, which are named in the following format: YYYYDDMMHHRR_<OSM name>.txt. These files are stored in the following folder: <installation drive>\Historian ETL eDNA Extract\Hist Files.

    You can only extract tag data; you cannot extract alarms and events data.

  2. After a specified number of files are extracted (by default, 6), the files are compressed into a .zip file, which is named in the following format: YYYYDDMMHHRR_<OSM name>.zip. These files are stored in the following folder: <installation drive>\Program Files\GE Digital\Historian ETL eDNA Extract\Zip Files.
  3. Deletes the text files in the <installation drive>\Program Files\GE Digital\Historian ETL eDNA Extract\Hist Files folder after they are compressed.