Quality Mapping

The driver performs a conversion of IEC60870 quality flags into a Plant SCADA quality representation. This conversion is based on OPC quality.

The following table describes the mapping of the IEC 60870 quality flags into Plant SCADA quality. The flags are listed in the order of priority so that if multiple quality flags are set, the driver will push the OPC quality flags for the quality bit with the highest priority:

Note: When using TagRead or TagReadEx Cicode functions, the driver is only able to return an error code for conversion to OPC quality in Plant SCADA. This means that the tag quality will only represent the general component of a quality flag.