Display the Properties window for a Totalflow Trend Point item and then select the Historic tab.
- Enabled—You need to select this check box on a Totalflow Trend Point, so that the driver can store the trend data that it retrieves for the point.
Disabling history clears the historic data for the point. On a Totalflow Trend Point it also causes the value of the NewestHistoricTime field to be reset and the value of NewestHistoricValue to be set to 0.
In addition you can configure the following:
Further Information