Compressing

Turns compression on (when set to 1) or off (when set to 0). Set compression to On for most points. Set compression Off for laboratory and manually entered tags, so that every value sent to the snapshot is saved in the archive.

Compression affects digital points, since a new value is recorded only when the current value changes. Points of types Blob and string have a similar behavior; new events pass compression only when the value changes. For Blob events, any change is significant.