FieldPoint analog input to Signal processing

[stephen s]

I have a new FieldPoint Analog input device installed, and addressable via LabVIEW DSC. I want to use the signal processing tools to analyze the input data. Specifically, I have a function generator connected to the analog input, and want to analyze the input signal through the "Tone Measurements" Express VI.

I keep having trouble with getting data types to properly convert. When I read the DSC Tag, I get a DBL (Double Precision) value. The input to the "Tone Measurements" Express VI is Dynamic Data Type (DDT).

How can I include timestamp data in that stream in a meaningful way? Or, alternatively, how can I convert the DSC tag output into a dynamic data type (DDT) or signal??

I have attached a half-working vi,
but it is neither smooth nor accurate and the Tone Measurements express vi doesn't output meaningful information.

[Bob_Y.]

The Tone Measurements Express VI assumes the input will be a waveform. You can use the Collector Express VI from the Signal Manipulation palette to collect individual points into a waveform. I would try this first.

If that does not work for you, you may need to use the VIs in the point by point palette. Do a search on the palette for "point by" and it should be the only one that comes up.