Preview the Expanded Tag List

The Historical Data Viewer page enables you to view a dialog that provides details about the tags associated with the pens you've selected for plotting. This is especially useful when a query has been used to assemble a group of tags for plotting, and you wish to view the details of the tags belonging to the group. An example is displayed below.

The Preview Expanded Tag List dialog displays a list of the tags whose data will be plotted, along with the following information:

•      The name, area, and description for each tag whose data will be plotted

•      The field (tag property) to be plotted (typically the value of each tag)

•      The type of data to be plotted (AnalogDataSource for analog tags (analog input and analog output tags), DigitalDataSource for digital tags (digital input and digital output tags), and NotesDataSource for notebook tags)

•      The tag type for each tag whose data will be plotted

 

To open the Preview Expanded Tag List dialog, follow the steps below:

1.  Click the Tag Selector button in the Historical Data Viewer page's tool bar. The Tag Selector dialog will open.

2.  Add the tags whose data you wish to plot to the Selected Tags/Queries for Plotting list.

3.  Click the Preview button. The Preview Expanded Tag List dialog will open.

The section that follows provides instructions on modifying pen properties.