In System Browser, select the corresponding data point (do not click the data point). In order to add multiple data points to the Trend View at the same time, select the Manual navigation check box and select the points.
Drag to the selected data point to the Trend application. NOTE: Data trending continues as long as the VL attribute for the data point is enabled (see Object Configurator). To display a change of value on a binary value, an additional dotted zero line is displayed at State 1 or One.
Click Save .
An online Trendlog object is created for each data point in ApplicationView > Trends > Online Log Objects. The Trend View Definition displays below the Trend View Definitions folder.