1. An operating unit for a container treatment machine, wherein the operating unit comprises at least one touch-sensitive display device, and the operating unit can be operated in two operating modes, wherein a first operating mode is only executed if the operating unit is connected to an operating station of the container treatment machine, and a second operating mode is only executed if the operating unit is not physically connected to the operating station, wherein the first operating mode and the second operating mode differ at least with regard to one function that can be executed with the operating unit, and wherein, in the second operating mode, at least one of the following functions is available: diagnosis function, parameterization of the container treatment machine, and monitoring of an operation of the container treatment machine.