Create trends

Use visualization tools, such as AVEVA PI Vision and PI WebParts, to create and save trends that you plan to use more than once.

To verify formulas, calculations, and other measurements in PI AF, create a trend.

1. From the PI System Explorer menu, select View > Show Trend.

2. In the Trend window, choose from the following actions.

   To ...	Do this ...
   Add an attribute to the trend	Click Add Attributes. In the Attribute Search window, specify search parameters in the Attribute Name, Attribute Category, and other fields to find the attribute of interest. Expand the element hierarchy in the Search results area and select the attribute. Click OK. The Trend window displays a trend showing how that attribute has varied over the past hour (1 hour is the default duration).
   Adjust the duration	Specify times in the Start Time and End Time fields.
   Add a PI point to the trend	Click Add PI Points. In the Tag Search window, search for the PI point you want to see and select it in the results. Click OK. The PI point is added to the trend.
   Adjust which traces are visible on the trend	Click Traces and clear the check box of attributes or points you do not want to see.

3. Add any further PI AF attributes and PI points for which you want to view data.

   The traces in the Trend window persist until you close the window.

   You can drag attributes and PI points from other search results and drop them on the trend to add them. Alternatively, you can right-click an attribute or point and click Add to Trend.