Abstract: A control device for operating a machine has a control unit with at least one actuating unit to which actuators and sensors are connected for operating the machine. The control unit has a bus line for transmitting control commands from an operating part to the actuating device. A plug connection between the operating part and the control unit is provided. A monitoring unit monitors an operating signal of the operating part. The monitoring unit triggers a safety function when the operating signal that is a heartbeat of the operating part is absent. Operating states of the operating part are monitored by the monitoring unit. An output signal of the monitoring unit is evaluated in that, when the operating part is switched on, the heartbeat is processed and, when the operating part is switched off, the absence of the heartbeat is ignored.

Abstract: A control device for operating a machine has a control unit with at least one actuating unit to which actuators and sensors are connected for operating the machine. The control unit has a bus line for transmitting control commands from an operating part to the actuating device. A plug connection between the operating part and the control unit is provided. A monitoring unit monitors an operating signal of the operating part. The monitoring unit triggers a safety function when the operating signal that is a heartbeat of the operating part is absent. Operating states of the operating part are monitored by the monitoring unit. An output signal of the monitoring unit is evaluated in that, when the operating part is switched on, the heartbeat is processed and, when the operating part is switched off, the absence of the heartbeat is ignored.

Abstract: In a method for configuring at least one mobile operating unit of at least one control, wherein the at least one operating unit is detachably connectable to the at least one control, wherein the at least one operating unit has a display, a memory, and an input device, the configuration information, required for configuring the at least one operating unit, is transmitted from the at least one control to the at least one operating unit at the time of connecting the at least one operating unit to the at least one control. The configuration information is then utilized in the at least one operating unit. The configuration information saved in the memory can be overwritten by new configuration information received from the control.