Hi alfa, I try to answer your question in English as far as I got a clue of your problem. If you want to change the settings of the scale of a graph manually just right-click on the graph in the front-panel and then click on "x-axis", "format" and there you can change e.g. SI-Units and the number of digits. If you want to do that programatically take a property-node right-click on it and connect it with your graph. Then click on "property" and you can select x-axis, number of didgits... which can be wired to the rest of your vi.
Good luck, Toni
