An ad hoc Trend’s trace can have multiple sources providing that either:
- The TRACE’s <Data Mode> is set to Current and UpdateMode = Interval.
or:
- The TRACE’s <Data Mode> is set to ProcessedHistoric and RawOverlay = False. (Be aware that no markers are displayed on a trace when RawOverlay = False.)
A multiple source trace has to obtain its data sources from the same ClearSCADA database. (On ClearSCADA systems that have Multiple Databases, use the TRACE section’s System identifier to specify the ClearSCADA database that provides a trace’s data source(s).)
Further Information
<Date Mode> is one of two TRACE Mandatory Values.
UpdateMode and RawOverlay are both TRACE Optional Values.