An assembly includes a drive device, a component to be displaced relative to a wall element for closing an opening of the wall element, and a guide device with which the component can be displaced relative to the wall element. A switch and/or a sensor system, preferably a metal detector, allows a partially open position of the component to be detected and/or allows the drive device to be activated, preferably based on a detection of the partially open position starting from a fully open position, and/or allows the drive device to be deactivated, preferably based on a detection of the partially open position starting from a closed position.