Auto Refresh Toggle Switch

At the top right-hand corner of your chart, you will see the Auto-Refresh toggle switch. Turning this feature on will allow your chart to auto-update when new data comes into Historian providing a “live chart” where old data “slides” to the left as new data samples arrive.

Important: When selecting this option, most chart options either have limited or no functionality. See Supported Functions.

Before setting the toggle switch to ON:

  • Set Mode to Lab or one of the Calculated Modes.
  • Leave Quick Time Picker on 1 hour.
  • Use default Line Chart option where time is on the X axis.
  • Pre-apply any desired filters.
  • The auto-refresh chart will keep your chart updating, but at some point (12 hours by default) your UAA token will expire. You may need to close your browser and log back into the application if you wish to use other features after keeping the auto-refresh chart as the active chart for long periods of time.
  • When using multiple tags in an analysis session, a Content Refresh Interval rate of 30 seconds or higher and a Sampling Increment of 30 seconds or higher is recommended; however, these values cannot be the same. For example, the Content Refresh Interval can be set to 30 seconds and the Sampling Increment can be set to 20 seconds.
Figure: Auto Refresh Toggle Switch