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OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates5.4.3.5 AverageStatusCode Calculation (see 5.3 ). This Aggregate is not time based so the PercentGood / PercentBad applies to the number of values in the interval. Table 53 - Average Aggregate summary Average Aggregate
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OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates5.4.3.34 PercentBadPercentBad The PercentBad Aggregate defined in Table 82 performs the following calculation: PercentBad = DurationBad / ProcessingInterval x 100 where: DurationBad is the result from the DurationBad Aggregate , calculated using the ProcessingInterval ... supplied to PercentBad call. ProcessingInterval is the duration of interval. If the last interval is a partial interval then the duration of the partial interval is used in the calculation