Displaying Data Curve with Trend

 

A trend visualizes data that is used in the database of a trend recording. In contrast to the trace element, the trend element is particularly appro­priate for long-term data recording.

The visualization of a trend encompasses the Trend element and the control elements. The three possible control elements can be seen in the illustration.

• Legend ①: Outputs the trend variables with values.

• Time range picker ②: Provides buttons for selecting predefined time ranges.

• Date range picker ③: encompasses control elements for navigation and zooming in the historical and current data on basis of the set date range.

A cursor is optionally available that enables the reading of a value at a certain time.

You can display a trend visualization in the following variants:

• Target visualization

• HMI: Communication takes place via a data sources manager

• Integrated visualization

See also

• Getting Started with Trend Visualization

• Visualization Element 'Trend'

• Visualization Element 'Date range picker'

• Visualization Element 'Time range picker'