The historical data trend graph (HD trend graph) almost complies with the normal trend graph. The only difference is the data coming from the ibaHD-Server instead of the ibaPDA server. This means that the scrolling of the X axis is controlled by the ibaHD server.

For the HD trend graph you can only select signals out of the ibaHD signal tree. Make sure that the ibaHD signal tree is open (menu View- ibaHD signal tree).

When adding an HD trend graph, no distinction is made between time- and length-based HD store yet. Depending on whether you pull the first signal in an HD trend graph from a time-based or length-based HD recording, the X-axis automatically converts to time or length units. Only signals with the same base (time or length) can then be added.

Whenever you add a new signal to the HD trend graph, you will see all the historical data for this signal. In the normal trend graph, only the data stored in the signal buffer of the client is displayed.

Along with the introduction of the HD server, new control elements were added to the trend view, e.g. panning and zoom buttons as well as a signal table. While these elements can be hidden or activated for the normal trend view, they are always available in the HD trend view.

For more information on controlling zoom and pan buttons, please refer to X-axis buttons.

If numerical and/or text fields have been configured for the event text along with the definition of HD events, these numerical values and texts can be displayed in the HD trend graph.

Link to ibaAnalyzer

When the HD trend graph is in pause mode, then it is possible to open the displayed time range in ibaAnalyzer. Just right-click on an HD trend graph and select Open with ibaAnalyzer in the context menu.