Trend
The Trend control can display multiple trend curves. It allows you to select different trend curves and change the settings of all axes.
Use
Can be used on any page where a trend is to be displayed. Allows linking to a BaObject of type Trend object or View.
 | For more information, see the documentation on Trending. |
Features
Multiple trend curves
If the BaObject is a trend object, then only the associated trend curve is displayed. It is not possible to select from different trend curves.
If the BaObject is a View, it is searched for trend objects and existing trend curves are displayed accordingly. It is possible to select from different trend curves if more than two trend objects are found.
In the listing, the trend curves to be displayed in the chart can be selected via the checkboxes. The adjacent button opens the parameter window of the respective trend object.
Axis parameterization
The settings of a y-axis can be opened by selecting the respective scale values.
Menu
The menu allows further settings for the trend.
Cursor
If Cursor is activated, a cursor is displayed under the x-axis. By default, this function is disabled.
Data zoom
The zoom can be shown and hidden via the checkbox. By default, the zoom is shown.
Redo
Restores the default settings.
Update
The trend curves can be updated once.
Auto Update
If the checkbox is checked, the trend curves are automatically updated as soon as new trend entries are available.
Displayed objects
Determines the objects to be displayed in the listing.
- RefObject: Displays recorded values.
- Trend: Displays all trend objects that record a value.
Displayed label
Selection of the label to be used in the listing.
Attributes
The control inherits from BaseControl and thus has the same attributes. In addition, there are the following attributes.
BA
BaObject
tchmi:framework#/definitions/Symbol
To use the generic functionalities of TcHmiBa. It links a single object or a complete view (including children) to the control.
| You can find more detailed information about the generic possibilities of TcHmiBa under Generic HMI. |
