Abstract: The present disclosure relates to a method for determining at least one process variable of a medium. The method includes steps of recording a first value for the process variable by means of a first method for determining the process variable and recording a second value for the process variable by means of a second method for determining the process variable. The method also includes steps of selecting at least one of the detected values for the process variable by means of a classifier and outputting the selected value for the process variable. The present disclosure further relates to a computer program designed for executing a method according to the present disclosure, and to a computer program product having a computer program according to the present disclosure.

Abstract: The present disclosure relates to a method for determining at least one process variable of a medium, including steps of recording a sensor signal from a field device and determining a selected model from a set of at least two different models by means of a classifier. Each of the models is used for determining the process variable based at least on the sensor signal. The classifier is designed to select the selected model. The method also includes a step of determining the process variable based at least on the selected model and the sensor signal.

Abstract: The present disclosure relates to a method for determining at least one process variable of a medium. The method includes steps of recording a first value for the process variable by means of a first method for determining the process variable and recording a second value for the process variable by means of a second method for determining the process variable. The method also includes steps of selecting at least one of the detected values for the process variable by means of a classifier and outputting the selected value for the process variable. The present disclosure further relates to a computer program designed for executing a method according to the present disclosure, and to a computer program product having a computer program according to the present disclosure.

Abstract: A method for supplying energy to a field device of process automation, which servers for registering a chemical and/or physical property of a process medium, energy required for operating the field device is obtained by means of the process medium.

Abstract: An apparatus and method for allowing at least one second device configured to use a second communication protocol to communicate with at least one first field device configured to use a first communication protocol. The apparatus including a first network communication arrangement configured to communicate with the at least one first field device using the first communication protocol, a second network communication arrangement configured to communicate with the at least one second device using the second communication protocol, and a device emulation processing arrangement configured to emulate the at least one first field device such that the at least one second device may communicate with the emulated at least one first field device using a third communication protocol.

Abstract: The apparatus makes it possible to change a desired sample volume—even during operation—in a simple manner without mechanical intervention, with any accumulation solids of a sample contained in a sample collecting vessel being avoided, so that a sample representative of the medium is obtained. The apparatus comprises a control unit which controls a pneumatic control gear and switches a pump by means of which the medium is drawn into a sample collecting vessel via a hose or tube used as a suction line. A detection unit incorporated in the suction line signals the presence of the medium to the control unit, which then controls the time period for taking the desired volume of the sample. The sample volume obtained is drained off into a sample container via a drain device.