Abstract: Disclosed is a valve device, comprising at least one valve piston arranged in a valve housing in a longitudinally displaceable manner, which valve piston is moved by means of a drive in conjunction with the assigned drive train and interconnects individual fluid ports present in the valve housing in a fluid-conveying manner or separates them from one another. A sensor device monitors the respective positions of the drive train and thus the respective positions of the valve piston in the valve housing.

Abstract: A control device has a plurality of modular control sections (12a-12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for controlling or monitoring a valve apparatus, which are connected to a central energy supply and/or monitoring device, which have individual connection parts (20a-20d) assigned to the particular control section (12a-12d), and which are connected in series and to one another. At least some of the connection parts (20a-20d) used are wirelessly in direct engagement with one another by way of their plug parts (22a-22c) and socket parts (24a-24c) that face one another and are adjacent to one another.

Abstract: A control device having a plurality of modular control sections (12a-12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for controlling or monitoring a valve apparatus, which are connected to a central energy supply and/or monitoring device, which have individual connection parts (20a-20d) assigned to the particular control section (12a-12d), and which are connected in series and to one another, is characterized in that at least some of the connection parts (20a-20d) used are wirelessly in direct engagement with one another by way of the plug parts (22a-22c) and socket parts (24a-24c) thereof which face one another and are adjacent to one another.