[JSup numeric tags|Numeric] and [JSup boolean values|boolean tags] can be logged by the [JSup Historian|Historian] so their value history can analized later with a [JSup Trend|trend] page.

Only [JSup domains|shared] tags can be logged.

To make a [JSup tag|tag] to be logged just select the ''Log data'' checkbox in the [JSup Tag dialog|Tag dialog].