About Extracting Data from Proficy Historian

The Historian ETL Extract tool extracts data as follows:
  1. Extracts data related to tags into text files, which are named in the following format: YYYYDDMMHHRR_<onsite Historian computer name>.txt. These files are stored in the following folder: <Historian ETL installation location>/Historian ETL Extract/HistFiles.
    Note: Data related to alarms and events is stored in .lax files. You can choose not to extract data related to alarms and events.
  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_<onsite Historian computer name>.zip. These files are stored in the following folder: <Historian ETL installation location>/Historian ETL Extract/ZipFiles.
  3. Deletes the text files in the <Historian ETL installation location>/Historian ETL Extract/HistFiles folder after they are compressed.