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0004-000067
Advanced Calculate Process Variables
The following table lists the PVs for the advanced calculate channel settings used to
configure specific calculations or math. These PVs are duplicated for each calculate
channel. In the following table,
N
is substituted with the appropriate channel number
from 1 to 4 (for example: Calc1FFTWin).
Process Variable
Type
Values
Description
setCalc
N
FFTWin
getCalc
N
FFTWin
mbbo
mbbi
Discrete
FFT window for selected calculate channel:
“RECT” = rectangular
“HAMM” = hamming
“HANN” = hanning
“BLAC” = blackman
“FLAT” = flattop
setCalc
N
FFTFormat
getCalc
N
FFTFormat
mbbo
mbbi
Discrete
FFT format for selected calculate channel:
“MLIN” = magnitude linear
“MLOG” = magnitude logarithmic
“PHAS” = phase
“REAL” = real
“IMAG” = imaginary
setCalc
N
FiltPoints
getCalc
N
FiltPoints
longout
longin
2 to 40
Digital lowpass IIR filter smoothing points for
selected calculate channel
Calc
N
LimitFail
bi
0 or 1
Calculation limit test results:
0 = no failures
1 = a failure has occurred
setCalc
N
LimitMeas
getCalc
N
LimitMeas
stringout
stringin
string
The measurement to check during a limit
test.
“MASK” = Mask Test
“AC” = AC RMS
“AMPL” = Amplitude
“AVER” = Average
“CAV” = Cycle Average
“CFR” = Cycle Frequency
“CPER” = Cycle Period
“CRMS” = Cycle RMS
“DC” = DC RMS
“ENOB” = Effective number of bits
(FFT)
“FEDG” = Number of Falling Edges
“FOV” = Falling edge overshoot
“FPR” = Falling edge preshoot
“FREQ” = Frequency
“FTCR” = Falling edge crossing time
“FTIM” = Fall time
“HIGH” = High
“LOW” = Low
“MAX” = Maximum
“MIN” = Minimum
“MID” = Mid
“NDUT” = Negative duty cycle
“NWID” = Negative pulse width
“PDUT” = Positive duty cycle
