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How does the OSI Soft SDK map the quality tags(around 80) coming from the PI Data source to its output tags(for eg: bad, constant, substituted,etc)?

Question asked by Adaruka on Apr 16, 2019
Latest reply on Apr 18, 2019 by David Hearn

There are 10 tags which the SDK sends forward with the data points, out of the 80 or so quality tags originally. Are the others discarded or mapped to one of the 10 tags?

The 80 tags are described as 8 bits (QQSSSSLL) where Q= Quality bits, S=Sub-status bits and L= Limit-status bits.

While the 10 tags sent forward by SDK are: Bad, Constant, UncertainSubstituteValue, Substituted, SubstatusMask, BadSubstituteValue, Questionable, Good, QualityMask and Annotated.

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