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Chapter 5
Collecting and Reviewing Data
Table 43 - Offroute User Parameters
Parameter Name
Description
Window
Type of window to be applied to the waveform measurement prior to
computing the spectrum
Window
Hanning
Hamming
Flat Top
Rectangular
Averages
Sets the number of individual data sets to be incorporated into the
average calculation.
Overlap
The percentage of overlap during the averaging. It can be used to
reduce the total time that it takes to collect the data.
Type
Sets the type of averaging for the measurement.
Ext Trig Slope
The input signal slope to be used for externally triggering the
measurement.
+ve - Defines the trigger event to occur on a rising edge.
-ve - Defines the trigger event to occur on a falling edge.
Level
The amplitude level for externally triggering the measurement. The
level is a percentage of the trigger full scale range.
Bin Zeroing
Enables/disables bin zeroing. When set to Off, the bins below the
selected high pass filter are not zeroed. That is, data still appears but
is attenuated by the filter shape.
Set bin zeroing to On when you want to be sure unwanted
frequencies do not affect data. Set bin zeroing to Off when you want
to be aware of the presence of unwanted frequencies.
158
Description
A general purpose window to use on random type data when frequency resolution is more important than
amplitude accuracy. Use this setting for most of your machinery monitoring activities.
Another general purpose window with slightly different window characteristics than the Hanning
window.
Use this when amplitude accuracy is more important than frequency resolution. In data with closely
spaced peaks, a Flat Top window may smear the peaks together into one wide peak. Use this for
sinusoidal or calibration signals.
The Dynamix 2500 data collector does not apply a window. Use this only for transient signals that die out
before the end of the time sample, or for exactly periodic signals within the time sample.
Rockwell Automation Publication 1441-UM001B-EN-P - September 2012
Values/Comments
Hanning (default), Hamming, Flat Top, Rectangular
Numeric value
4 (default)
Percentage
Spectral (default)
Time Synchronous
Peak Hold
Exponential
+ve (default)
-ve
Numeric: 0.0 (default)
On (default)
Off
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