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Scope: Core (OPC-10000-*) All specs

15 result(s) for Simple Bounding Values

OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

3.1.9 simple bounding values

simple bounding values bounding values determined by a calculation using the nearest value Note 1 to entry: Simple Bounding Values using SlopedInterpolation are calculated as follows: if any Raw value ... value after the timestamp is Bad or Uncertain the StatusCode is Uncertain_DataSubNormal . Simple Bounding Values using SteppedInterpolation are calculated as follows: if any Raw value exists at the timestamp
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

6.5.5.2 Read at time functionality

useSimpleBounds flag is True and Interpolation is required then simple bounding values will be used to calculate the data value. If useSimpleBounds is False and Interpolation is required then interpolated ... calculate the data value. See OPC 10000-13 for the definition of simple bounding values and interpolated bounding values . If a value is found for the specified timestamp, then
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

3.1.7 bounding values

found before and after the timestamp to estimate the bound. The other (called Simple Bounding Values ) uses the data points immediately before and after the boundary timestamps to estimate ... advanced process control where having useful values at all times is important. The Simple Bounding Values approach (see 3.1.9 ) is new in this standard and is important for applications which
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

4.2.2.2 AggregateFunctionType

Bounding Values . TimeAverage2 Retrieve the time weighted average data over the interval using Simple Bounding Values. Total Retrieve the total (time integral) of the data over the interval using Interpolated ... Total2 Retrieve the total (time integral) of the data over the interval using Simple Bounding Values . Minimum Retrieve the minimum raw value in the interval with the timestamp
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.2.2 Sloped Interpolation and Simple Bounding Values

Sloped Interpolation and Simple Bounding Values Figure 2 illustrates a data series for Variable with Stepped = False and an Aggregate that uses Simple Bounding Values . The request being processed ... integer multiple of the ProcessingInterval . Figure 2 - Variable with Stepped = False and Simple Bounding Values The first interval has four regions: the period before the first data point; the period
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.7 TimeAverage2

TimeAverage2 The TimeAverage2 Aggregate defined in Table 55 uses Simple Bounding Values (see 3.1.9 ) to find the value of a point at the beginning and end of an interval. Starting ... straight line is drawn between each value in the interval ending at the ending bounding value (see examples for illustrations). The area under the lines is divided by the length
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.15 Minimum2

minimum Good value for each interval as defined for Minimum except that Simple Bounding Values are included. The Simple Bounding Values for the interval are found according to the definition ... Simple Bounding Values (see 3.1.9 ). Any Bad values are ignored in the computation. The Aggregate StatusCode will be determined using the StatusCode Calculation (see 5.3 ) for time based Aggregates
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.16 Maximum2

maximum Good value for each interval as defined for Maximum except that Simple Bounding Values are included. The Simple Bounding Values for the interval are found according to the definition ... Simple Bounding Values (see 3.1.9 ). Any Bad values are ignored in the computation. The Aggregate StatusCode will be determined using the StatusCode Calculation (see 5.3 ) for time based Aggregates
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.17 MinimumActualTime2

minimum Good value for each interval as defined for MinimumActualTime except that Simple Bounding Values are included. The Simple Bounding Values for the interval are found according to the definition ... Simple Bounding Values (see 3.1.9 ). Any Bad values are ignored in the computation. The Aggregate StatusCode will be determined using the StatusCode Calculation (see 5.3 ) for time based Aggregates
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.18 MaximumActualTime2

maximum Good value for each interval as defined for MaximumActualTime except that Simple Bounding Values are included. The Simple Bounding Values for the interval are found according to the definition ... Simple Bounding Values (see 3.1.9 ). Any Bad values are ignored in the computation. The Aggregate StatusCode will be determined using the StatusCode Calculation (see 5.3 ) for time based Aggregates
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.22 DurationInStateZero

Duration during the interval that the Variable was in the zero state. The Simple Bounding Values for the interval are used to determine initial value (start time < end time ... ending value (if start time > end time). If one or more raw values are non-Good, they are not included in the Duration , and the Aggregate StatusCode is determined
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.23 DurationInStateNonZero

Duration during the interval that the Variable was in the one state. The Simple Bounding Values for the interval are used to determine initial value (start time < end time ... ending value (if start time > end time). If one or more raw values are non-Good, they are not included in the Duration , and the Aggregate StatusCode is determined
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.28 StartBound

value and status at the StartTime for the interval by calculating the Simple Bounding Values for the interval (see 3.1.9 ). Table 76 - StartBound Aggregate summary StartBound Aggregate Characteristics Type Calculated
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.29 EndBound

value and status at the EndTime for the interval by calculating the Simple Bounding Values for the interval (see 3.1.9 ). The timestamp returned is always the start of the interval ... Aggregate summary EndBound Aggregate Characteristics Type Calculated Data Type Same as Source Use Bounds Simple Timestamp StartTime StatusCode Calculations Calculation Method Custom The status of the end bound. Partial
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.36 WorstQuality2

WorstQuality2 Aggregate defined in Table 84 returns the worst status of the raw values in the interval where a Bad status is worse than Uncertain, which is worse than Good ... Simple Bounding Values (see 3.1.9 ) is always included when determining the worst quality. If multiple values exist with the worst quality the MultipleValues bit is set. If multiple values exist