update graph realtime

[hiNI]

Hello,

In the attached VI in labview 8.5, I wanted to display two plots on the same graph in real-time.  That is, for every iteration in the "for loop", the graph updates.  I am only able to do this with one of the plots (y1) but would like both sets of y-data to show up on the graph (i.e both y1 and y2).  Is there a way to do this real-time?

Thanks,

hiNi

[lacVIEW]

Do you have to use and XY graph? If not you migh try using the "Merge Signals" Functions.

[KHZ · Accepted solution]

This is possible to do with a XY-graph. The data the XY-graph accepts for plotting mutiple graphs are an array of clusters. The cluster consists of two arrays containing the x and the y values. I included the vi with the solution for you.

I hope this solves your problem.

Best regards. 

[hiNI]

THANK YOU!!!