History Chart Builder view

This view is the default view of the History space node (in the Nav tree). As one of the available views, you can build any one of several types of chart options from the data that are stored in one or more histories. This view displays in Workbench, in all Workbench (Wb) Web profiles, and in the Default Hx, and Basic Hx profiles as well.

NOTE: The following description discusses the History Chart Builder view in terms of the Wb Web and the desktop Workbench display profiles. Stations can display the History Chart Builder view in the browser using the Default and Basic Hx (non-Java applet) profile views. Views displayed using Hx look different but behave very similarly to the Workbench view. All property descriptions apply to both views.

The History Chart Builder Workbench view shown here. Using this view, you can select the histories and History Nav Shortcuts and configure the charts that you want to generate.

Figure 41. History Chart Builder view

The display of the view is divided into three primary areas:

Display configuration properties

Property	Value	Description
Time Range	Time Range, Today (default), Last 24 Hours, Yesterday, Week-To-Date, Last Week, Last 7 Days, Month-To-Date, Last Month, Year-To-Date, Last Year	Specify a time property option from the drop-down list, including an option that allows you to set a specific time range using the Edit Time Range window box.
Title	Text string	Specify a title for your chart in this text property.
Grid Lines	Hide, Show (default)	Show or hide grid lines on the history chart.
Rollup (or Rollup Interval)	None (default), 1-minute, 5-minutes, 15-minutes, 30-minutes, Hour, Day, Month, Year	Specifies an interval of time used to determine what (and how) data is presented in your chart. Each point displayed, represents a designated time interval before the specified plot time. A rollup value of 1 hour will present data at a granularity level of every one hour, while a rollup value of 15 minutes will show data for every 15 minutes of logged data.

Histories pane

This is the lower left area of the Chart Builder view. It displays all histories that are available in your local station or any station histories that you import by means of the NiagaraNetwork or other network driver (for example, BacnetNetwork). Histories are grouped under the station by station name. Double-click (Wb Web profile) or click (Hx Web profile) on a history name to copy it to the Current Charts pane.

The histories that are displayed in this pane are the same histories that are displayed under the History space node in the Nav tree.

Current Charts pane

This pane displays the histories that are selected to be plotted. For each history, you may select the type of chart to generate, using the chart type option list, as displayed in .

Adjacent to the histories in this pane are icon-type controls that allow you to reorder histories in the pane or remove histories from the pane.

Control buttons

The following control buttons are located at the bottom of the Chart Builder view:

Build builds the chart using the histories that are in the selected Current Histories pane.
Clear removes all histories from the Current Histories pane.

Time zones

When charting multiple histories that include different time zones, the Chart Builder uses a zoneless time range configuration so that it can plot each history with reference to its own time zone. This means that the resulting charts are aligned by local time. For example, if you select a time range of 8:00 AM through 5:00 PM for two histories—one in EST and another in CST—then the values at 8:00 AM align so that the 8:00 AM values may be visually compared.