Hi I have two decimal strings, each one contains numbers that change over time. I want to plot them on XY graph, one string for each axe. Can you show me how to do it?

[altenbach]

You did not use a feedback node, thus the broken wire. Also you should append to the end and not to the beginning of the existing array (for performance reasons).

I don't see a toplevel while loop. Are you using continuous run(don't!!)? Are you calling this as a subVI? It would be so much easier to attach a VI instead of a picture. Please do so.

[Figas]

Appending to the end and not to the beginning made the difference, I don't know if I done any thing else. I haven't tested the graph part yet I will try to do it later. Yes I can show the .vi