Subvi output displayed dynamically on XY graph

Hi, I'm trying to implement a VI to apply a voltage signal ramp up to a door of transistor and measure the current resulting from the source to the drain. It is necessary that the data is graphically in real time as it is acquired. I managed to do it using the buffer of XY charts examples of LabView (see file attachment, it is using the Keithley instruments 3rd party functions so let me know if it is not readable).

I'm now trying to recreate this VI in a more modular/maintainable structure. I would really like to have a sub - VI that data "streams" at the VI main where it is dynamically displayed on a chart, but I'm not sure how to achieve this. I tried to place a stamp of XY table on the output of the Sub - VI, but this doesn't seem to work. I wonder now if something like this model producer/consumer would work well. Are there more simple/better suggestions?

I used successfully one of the methods is to pass a reference to your 'table' to the Subvi XY. The 'Value' property graphic inside your Subvi node to view the data on your graph to the VI main. In my case the 'Sub - VI' was a background thread.

Tags: NI Software

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