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Historian OPC HDA Server Supported Quality Values

The following table lists the mapping of quality values between Historian and the OPC HDA Server.


Proficy Historian Quality	OPC HDA Quality	Description
ihOPCGood	OPC_ QUALITY_ GOOD	Indicates there is no need for inspection. This quality is returned for the tags that have all the values archived properly.
ihOPCBad	OPC_ QUALITY_ BAD	Indicates a need for attention. This quality is returned for the tags that had problems during the collection.
ihOPCUncertain	OPC_ QUALITY_ UNCERTAIN	Indicates a need for inspection. This quality is returned when the data collection time is low and when there is no specific quality value.
ihOPCNA	OPC_ QUALITY_ BAD	Indicates a need for attention.