array plot

Hi,

I'm new of WinCC, so sorry if my question is banal.

I'm coding a Graphic User Interface, where I would like to plot datapoint A versus datapoint B, A and B being dyn_float arrays (with the same number of points).

A and B will be updated every about 2 seconds, and I would like the A-vs-B graph updated consequently.

I can make the dpConnect to read A and B datapoints, but I don't find a way to make such a graph.

I see posts speaking about arrays plot, but they look like quite complicated for me, while my question looks quite basic to me. Can you help me? 

thanks

Anna