The diagramm software shows in a graphical way the relationship between enthalpy or entropy to pressure. In addition the state values of temperature, pressure, volume, enthalpy, entropy and steam moisture are seen as numbers. The highest reachable pressure is 250 bar and the deviation lays around 1 %. The operating states can be graphically connected, so that, for example, a water steam circuit can be seen as a picture. By means of a mouse, sections can be zoomed in or out.