Reading Twf And Fft Data - Allen-Bradley 1444-TSCX02-02RB User Manual

Reading TWF and FFT Data

The 1444 Dynamic Measurement Module can serve spectra (FFT) and time
waveform (TWF) data from live, buffered, and captured (saved) data sources.
While there are small differences in how the data is specified, how it is read is
the same regardless of its source. The following objects allow reading FFT and
TWF data.
Object Function
Dynamix Data Manager Read live data
Read trend data
Read alarm data
Dynamix Transient Data Read captured transient
Manager data
Dynamix Normal CM Data Read live data
Dynamix Advanced CM Read demand data
Data
See the individual object descriptions for details on how to specify data
requests.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
CIP Objects
Description
Returns the TWF or FFT processed from the current "live"
data.
Returns either the most recent TWF or FFT, or all TWFs or
FFTs, from either the High or Low-Resolution Trend buffers.
Returns either the most recent TWF or FFT, or all TWFs or
FFTs, from either the High or Low-Resolution Alarm
buffers.
Returns the contents of the specified transient buffer.
Returns the TWF or FFT processed from the current "live"
data.
Returns TWF or FFT data that is processed from the
Demand buffer.
Appendix A
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