The Trend Control object displays data points
(values) from different data sources in a graphic format.
The main features provided by the Trend Control
object are:
- Display of multiple pens simultaneously
- Support for different Data Sources, such as Tag,
Batch, Database and Text File
- Capability to generate X/Y graphs from the
configured data sources (please refer to Appendix A
for an example of an X/Y chart).
- Simultaneous display of an unlimited number of data
points. This feature might be limited by the hardware used since
available memory and performance will vary.
- Built-in toolbar, which provides interfaces for the
user to interact with the Trend Control object during runtime
- Built-in legend, which displays the main information
associated to each pen linked to the object
- Zooming and auto-scaling tools
- Horizontal and vertical orientation