Associated with: Trends and X-Y-Z Plots
The Bad Data state is indicated by a purple marker (by default) on a Trend or X-Y-Z Plot’s trace.
The color indicates that the quality of the value may be bad (the value is unreliable and may be inaccurate).
For data sources that exist in the ClearSCADA database, ClearSCADA obtains the marker color from the data source's Color Palette. The exception to this is if ClearSCADA is unable to obtain the marker color from the server (for example, if communications with the server is interrupted when a Trend is redrawn). In such a situation, ClearSCADA uses the marker color that is specified in the Options window (see Display the Options Window in the ClearSCADA Guide to Client Administration). ClearSCADA also uses the marker color from the Options window for data sources that are from a non-ClearSCADA database (for example, another OPC database).