ABB COM600 series Data Historian Operator's Manual page 65

1MRS756739 COM600 series, Version 5.0
Data Historian Operator's Manual
ADEV Arithmetic Deviation
ADEVP Arithmetic Deviation of Entire Population
AMEDIAN Arithmetic Median
AMODE Arithmetic Mode
AVARIANCE Arithmetic Variance
AVARIANCEP Arithmetic Variance of Entire Population
AVG Time Weighted Average
AVGRAW Raw Time Weighted Average - ignoring the invalidity of values
CALC User Defined Calculation. E.g. CALC(y*2) returns values doubled and
CALC(y > 0 ? 10:20) returns 10 if y > 0, otherwise return 20. See the chapter
below for supported constants and functions.
COUNT Count of Samples Within Period
COUNTG Count of Good Samples Within Period
COUNTI Count of Invalid Samples Within Period
COUNTQ Count of Questionable Samples Within Period
COUNTS Count of Substituted Samples Within Period
CONVERT Converts Values to User Specified Unit, for example CONVERT(hp) can
be used to get horse powers out of kilowatts.
CUMSUM Cumulative Sum
CUMSUMTO- Cumulative Sum to Double Value
DOUBLE
DELTA Last Sample In Period minus First Sample In Period
DEV Time Weighted Deviation
DUR Duration = Period Length (changes only upon daylight savings or with month
periods)
DURG Good Duration as a TimeSpan Within Period
DURI Invalid Duration as a TimeSpan Within Period
FIRST First Value of a Period
FFT Fast Fourier Transform of input data
HISTOGRAM Histogram of input data
INTSEC Time Integral in Seconds
INTMIN Time Integral in Minutes
INTHOUR Time Integral in Hours
LAST Last Value of a Period
MAX Maximum Value of a Period, TimeStamp is the Value Time
MAXPT Maximum Value of a Period, TimeStamp is the Period Time
MIN Minimum Value of a Period, TimeStamp is the Value Time
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