Configure the historical trend time span

The Historical Trend Chart Wizard dialog box includes an option to manually configure the time span shown from a trend created with the Historical Trend Wizard. You can manually configure a trend’s time instead of accepting the default configuration of the Historical Trend Wizard.

Configure the time span of a historical trend

1. Double-click the historical trend. The Historical Trend Chart Wizard dialog box appears.

2. Select Times. The Time Format dialog box appears.

   

3. Configure the time format. Do the following:

   1. In the Major Divisions box, type the number of major time divisions shown on the horizontal time axis of the trend.

   2. In the Minor Div/Major box, type the number of minor time divisions within each major division.

   3. In the Initial Time Span box, type the length of the time period shown on the horizontal axis of the trend. Trends created with the Historical Trend Wizard can be updated while the application is running in WindowViewer. Operators can change the length of the trend time period. But a historical trend always starts with the time period set from the Time Format dialog box.

   4. Select the unit of measure for the trend time period in seconds, minutes, hours, and days.

   5. Optionally, include milliseconds in the scooter time display. The following example shows a scooter slider with milliseconds appended to the current time.

      

4. Select OK to close the Time Format dialog box.

5. Select OK to close the Historical Trend Chart Wizard dialog box.