How does the update rate relate to the dt of the waveform in AO Waveform Gen (waveform).vi?

[Peeker]

In AO Waveform Gen (waveform).vi the inputs consists of among others a waveform and update rate. The waveform in turn includes a parameter dt. What is the relationship between dt and update rate.

For example: if dt is 1 ms and update rate is 1100 Hz, at what rate will the samples be generated?

//Martin

[JFT']

Hi Martin

I was seeing the "LV-Help" of block "AO Waveform Gen" in where it says clearly that "dt" of waveform is not used for this ("...The values of t0 and dt in waveform data are not used..."). Then, the value "update rate" is the one that controls the rate that will be generated. That's all.
Good bye.

JFT

[chutla]

Actually the update rate is quite independent of the the dt. The dt is dependent on the clock rate of your computer, which is usually not a serious limiting factor for virtual waveform generators. The update rate determines how often the scan is restarted. The update rate and NUMBER of samples determines the "frequency" of your vi's output. The Help file is very descriptive of this. By the way the NEWER waveform sets use actual frequency (in hertz) parameters, while the older ones defaulted to one cycle of 128 samples. Use the newer sets wherever possible.

Eric