Touchpanel
The modules all do have a optically bonded capcitive touchpanel (PCAP), which is used for mounting, too. By touching the display you can enter data and adjust settings via menus or bar graphs. The labelling of the "keys" is flexible and can also be changed during runtime (different languages, icons). The drawing of the individual "keys" as well as the labelling is completely handled by the built-in software.