Abstract: An arrangement with a superordinated control unit and at least one intelligent field device connectable with the control unit, wherein associated with the control unit is at least one interface with a connection element for accommodating a corresponding connection counterpart. The connection counterpart is associable with an interface module, wherein associated with the interface module is a software protection system securing accessing of the field device. The interface module permits communication between the corresponding field device and the superordinated control unit, wherein associated with the superordinated control unit is a software-protected processing program for the field device, and wherein the processing program is started or enabled via the software protection system, when the connection counterpart of the interface module of the field device is connected with the connection element of the control unit.

Abstract: In a method and in an apparatus for transmission of energy and data, with a primary side, on which an amplifier is arranged, with a secondary side, on which a data source, e.g. a measuring sensor, is arranged, and with a plug-together assembly inductively coupling, galvanically completely isolated, the primary side and the secondary side, to minimize power losses and disturbing influences of fluctuating parameters, power from the plug-together assembly and from the amplifier, preferably a Class-E-amplifier, is controlled to a predeterminable, desired value. For this, a microcontroller taps the primary voltage on the primary winding and produces for the amplifier a controlled operating voltage as well as a controlled operating frequency, in order to keep the working point of the amplifier always in the optimal region.

Abstract: A device for determining or monitoring one or more physical and/or chemical, process variables and having a vibration sensor comprising, a plug-in element and a socket element, which are releasably connected by a pluggable connection and which communicate with one another via an interface, wherein, in the plug-in element or the socket element, a transducer is provided for determining or monitoring a process variable, and wherein the element not having the transducer has the vibration sensor, and the element having the vibration sensor is connectable with a superordinated unit.

Abstract: A cable circuit for connecting a sensor module to a measurement transmitter. The cable circuit includes a contactless interface for signal transmission between the cable circuit and the sensor module, wherein the sensor module is galvanically isolated from the cable circuit, and wherein signal transmission between the cable circuit and the sensor module occurs on an optical, inductive or capacitive path. Additionally, the cable circuit includes a signal processing unit, as well as a cable interface for connecting a cable, which connects the cable circuit with the measurement transmitter. The signal processing unit is integrated into the signal path.

Abstract: A system for process automation with a plurality of intelligent sensors, wherein each sensor serves for determining or monitoring a physical or chemical, process variable of a medium and each sensor has a primary side, plug connector element and a secondary side, plug connector element with a sensor element. Energy supply and data communication occurs between the two plug connector elements via a releasable plug-in connector coupling, wherein associated with each sensor is a Web service interface, via which the sensor is connectable to a wide area network (WAN) or to a local area network (LAN). A control unit or a server is provided, which provides at least one software for generating a virtual measurement transmitter, and wherein communication occurs between the virtual measurement transmitter and the sensors via the Web service interface.

Abstract: A measuring apparatus having a measurement voltage input with at least one input contact for an input voltage of a measuring element and a method for detecting moisture on the measurement voltage input of such a measuring apparatus are provided, wherein the measuring apparatus includes a supplemental voltage source, which delivers at least one supplemental voltage and is connected with a supplemental contact arranged in the region of the at least one input contact.