Abstract: To be able to manufacture an operator control arrangement cost-effectively, the display and operator control units are embodied such that they are functionally identical and interchangeable. A calculation unit is provided which converts process data of functional units of a rail vehicle into image data and processes operator control data on the basis of operator control actions performed at the display and operator control units. The display and operator control units are connected to the calculation unit via a data network by a network protocol for transmitting the image data and the operator control action data. A status unit is connected to the data network, which status unit determines the respectively valid status of the operator control arrangement by a rail-vehicle-specific configuration logic of the possible combinations of the display and operator control units and the calculation unit as a function of the respective status of the rail vehicle.