Compression

Enable compression to apply compression algorithms and save only event values that indicate a change in point value. When disabled, all values collected and sent to the snapshot, including redundant values, are saved in the PI archive.

Note: By default, future PI points have compression turned off (set to 0).

Enable compression for all real-time points. Digital, BLOB and string data type values pass through compression only when the value changes. Compression is typically turned off for points that collect sample data, such as lab data, or other sparse data streams.