In the Time selection area of the HD query dialog, set the time range for which you want to execute the query.
Signal tree
In the signal tree, select the signals for which you want to execute the time selection.
For further information on using the signal tree, see Time selection – signal tree.
Option fields
Option fields make it easier to select the time range.
For all options except Custom, the time range is re-evaluated at the time the query is executed.
The toolbar is hidden in the signal view by default. To show the toolbar, click on Show toolbar in the context menu of the preview.
Custom
Select this option if you want to select the time range manually with markers in the preview or with the time control elements.
See Time selection – preview of the HD trend graph.
Last 60 minutes
The queried time range starts one hour before the current time and lasts until the current time.
Last 24 hours
The queried time range starts one day before the current time and lasts until the current time.
Last 7 days
The queried time range starts one week before the current time and lasts until the current time.
Last month
The queried time range starts on the same day and at the same time as one month before the current time and lasts until the current time. The length of the time range corresponds to the number of days in the month before the current month.
Last year
The queried time range starts on the same day and at the same time as one year ago from the current time and lasts until the current time. The length of the time range corresponds to the number of days in the year before the current year.
Start/Stop
Input fields or calendar function for date and time of start and stop time. The fields are only visible if you have selected the Custom option.
If you maintain these fields, the markers are positioned accordingly in the HD trend graph.
If you click on the [>>] button to the right of the date field of the stop marker, the stop marker is automatically positioned at the current time and the signal values currently available in the HD store are loaded.
Preferred time base
Selection of the time base with which to load the data.
For information on the time bases offered and how they are formed, see Selection of the preferred time base.
Duration
Duration of the time range between start and stop time
The values adjust when you move the markers in the HD trend graph or change the values in the Start and Stop fields, and vice versa fields. You can also enter the duration directly in days, hours, minutes and seconds. In this case, define how the time range is positioned:
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From Stop: Stop marker remains in place, start marker is moved.
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From Start: Start marker remains in place, stop marker is moved.
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Centered: The center of the selected area is stationary, both markers are moved symmetrically to it.
To change a value and set the other values to zero, hold down the <Ctrl> key. For example, you can change the minutes and set the values in the fields for days, hours and seconds to zero.
<ibaAnalyzer range>
Use the button to adopt the time range of the data currently loaded in ibaAnalyzer for the query. The button is only active if you have already loaded data before opening the HD query dialog.
<Zoom in on range>
The markers remain in place when zooming in or out or when moving the X-axis. On the other hand, moving the markers or changing the values for the start and stop times does not automatically adjust the zoom factor. The markers can therefore be very close together or outside the window. This button sets the zoom range so that the selected time range is displayed in the middle of the graph. Start and stop markers are positioned at ¼ and ¾ of the visible X-axis section.
HD trend graph
You can also define the time range in the HD trend graph with markers.
For further information on using the HD trend graph, see Time selection – preview of the HD trend graph.
