Construction machine having a machine frame supported by a chassis and a device for controlling the construction machine, wherein the device for controlling the construction machine comprises: an operating panel which has at least one operating element that can assume a plurality of switching states or positions, a control and monitoring unit for controlling a component of the construction machine as a function of a control signal signalling the switching state or the position of the at least one operating element, a display and/or signal unit which interacts with the control and monitoring unit, characterised in that a first signal transmission path for signal transmission of a first control signal signalling the switching state or the position of the at least one operating element and a second signal transmission path for signal transmission of a second control signal signalling the switching state or the position of the at least one operating element are provided between the at least one operating element and the control and monitoring unit, the control and monitoring unit is configured such that the first control signal transmitted via the first signal transmission path and the second control signal transmitted via the second signal transmission path are checked for the existence of a plausibility criterion, wherein the control and monitoring unit causes the display and/or signal unit to issue a request to activate an emergency operation if the control signals transmitted via the first and second signal transmission path do not meet the plausibility criterion, wherein in the emergency operation the control of the component without the plausibility check takes place only as a function of the first control signal transmitted via the first signal transmission path or the second control signal transmitted via the second signal transmission path. an operating panel which has at least one operating element that can assume a plurality of switching states or positions, a control and monitoring unit for controlling a component of the construction machine as a function of a control signal signalling the switching state or the position of the at least one operating element, a display and/or signal unit which interacts with the control and monitoring unit, characterised in that a first signal transmission path for signal transmission of a first control signal signalling the switching state or the position of the at least one operating element and a second signal transmission path for signal transmission of a second control signal signalling the switching state or the position of the at least one operating element are provided between the at least one operating element and the control and monitoring unit, the control and monitoring unit is configured such that the first control signal transmitted via the first signal transmission path and the second control signal transmitted via the second signal transmission path are checked for the existence of a plausibility criterion, wherein the control and monitoring unit causes the display and/or signal unit to issue a request to activate an emergency operation if the control signals transmitted via the first and second signal transmission path do not meet the plausibility criterion, wherein in the emergency operation the control of the component without the plausibility check takes place only as a function of the first control signal transmitted via the first signal transmission path or the second control signal transmitted via the second signal transmission path.