Showing results for 
Search instead for 
Did you mean: 

Problem with Graph XY


I'm a new Labview user and  I try to plot two parameters in a XY graph. and my XY graph not showing any graph.

Please can you tell me why. This is my VI



0 Kudos
Message 1 of 4


To produce an xy graph with a time element - see the attached picture


You may also require a timer within the loop to prevent the vi taking excessive computing power.


XY graph.jpg

0 Kudos
Message 2 of 4

thanks by I not use a Time element

0 Kudos
Message 3 of 4

Hi FrancoM,


In fact you can see one point in X and Y, because you chose the VI read Analogique 1D wfm Nvoies 1Echant. So this VI will return a waveform with a array of 1 élement for X and Y. 

If you want to plot more point you need to use the VI read Analogique 1D wfm Nvoies NEchant.



Rémi D.
National Instruments France

>> Les rencontres techniques de NI - Mesures et acquisition de données : de la théorie à la mise en ...

0 Kudos
Message 4 of 4