The Total2 Aggregate defined in Table 20 performs the following calculation for each interval:

Total2 = TimeAverage2 x ProcessingInterval of Good data (seconds)

where TimeAverage2 is the result from the TimeAverage2 Aggregate, using the ProcessingInterval supplied to the Total2 call.

The interval of Good data is the sum of all sub-intervals where non-Bad data exists; i.e. if a value was Bad for 1 minute in a 5-minute interval then the interval of Good data would be the 4-minute period.

The resulting units would be normalized to seconds, i.e. [TimeAverage2 Units] x seconds.

The Aggregate StatusCode will be determined using the StatusCode Calculation (see 5.3).

Table 20 – Total2 Aggregate summary

Total2 Aggregate Characteristics

Type

Calculated

Data Type

Double

Use Bounds

Simple

Timestamp

StartTime

StatusCode Calculations

Calculation Method

PercentTime

Partial

Set Sometimes

If an interval is not a complete interval

Calculated

Set Always

Interpolated

Not Set

Raw

Not Set

Multi Value

Not Set

StatusCode Common Special Cases

Before Start of Data

Bad_NoData

After End of Data

Bad_NoData

No Start Bound

Value for Bound is Bad_NoData and is treated like any other Bad quality value in the calculation (ignored)

No End Bound

Value for Bound is Bad_NoData and is treated like any other Bad quality value in the calculation (ignored)

Bound Bad

Value is treated like any other Bad quality value in the calculation (ignored)

Bound Uncertain

Value is treated like any other non-Good quality value in the calculation (ignored)