Elevator system and elevator operating devices for different operating modes

An elevator operating device comprising:

• a bus interface device configured to communicate with an elevator controller of an elevator system via a communication bus system;
• a storage device configured to store configuration data and electronic instructions for selectable operating modes of the elevator operating device, wherein a first operating mode is configured to process an elevator call that indicates a direction of travel input, and wherein a second operating mode is configured to process an elevator call that indicates an input destination floor;
• a screen system comprising a touch-sensitive screen and configured to display a graphical user surface on the touch-sensitive screen;
• and
• a control device communicatively connected to the bus interface device, the screen system and the storage device, wherein the control device is configured to read the configuration data and the electronic instructions for a selected operating mode from the storage device and to operate the elevator operating device according to the selected operating mode.