Endress + Hauser Gmbh + Co. Kg

Endress+hauser Conducta Gmbh+co. Kg

Endress+hauserse+co. Kg

Endress + Hauser Process Solutions Ag

Elmos Semiconductor Ag

Elmos Semiconductor Se

Mechaless Systems Gmbh

Markus Kilian

Dietmar Spanke

Christian Wandrei

Björn Haase

Tobias Brengartner

Axel Pöschmann

Andrea Seger

Bert Von Stein

Helmut Kalteis

Ralf Schmidt

Thomas Alber

Sergey Lopatin

Achim Stellberger

Eric Birgel

Uwe Hendrik Hill

Michael Hase

Reinhard Buchner

Rebecca Page

Lars Vollmer

Norbert Wandrei

Dieter Waldhauser

Philipp Leufke

Sascha Bihler

Simon Merklin

Rolf Hülß

Wolfgang Jörger

Stefan Albers

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.

Method for determining a process variable with a classifier for selecting a measuring method

The present disclosure relates to a method for tamper-proof storage of data of a field device operated by means of automation technology, wherein the field device comprises a sensor and/or actuator and an electronic unit, the field device generating data. The method comprises steps of creating at least one transaction containing generated data of the field device and storing the transaction in a data block of Blockchain technology comprising a data field containing stored transactions and a hash value. The method also includes steps of linking the data block to previously created data blocks, storing the data block in a service platform and creating and storing a security data block in the service platform.

Method for tamper-proof storage of data of a field device

The disclosure relates to a method for operating a field device of automation technology, comprising: establishing a wireless and/or wired communications link between the field device and an operating unit; establishing a communications link between an authentication card and the field device, using the operating unit, wherein at least the field device and the authentication card contain symmetric or asymmetric key information; and carrying out an at least unilateral authentication of the authentication card on the field device, as well as an operating unit for carrying out the method according to the invention.

Method for operating a field device of automation technology and an operating unit for carrying out the method

The disclosure includes a method and a system for the distributed storing of information in a plant of process automation having a plurality of field devices, the method including: reading data in the form of data bit sequences, both from a first field device as well as also from at least a second field device, by a logic unit; combining at least a first data bit sequence read from the first field device with at least a second data bit sequence read from the second field device by means of an XOR function executed by the logic unit for forming a first check bit sequence, wherein in the check bit sequence each position corresponds to an XOR operation of the corresponding locations of the first and second data bit sequences; and storing the check bit sequence in a third field device.

Method and system for the distributed storing of information in a plant of process automation having a plurality of field device

The present disclosure includes a method for authenticating a field device of automation technology with respect to a destination device. A telegram is created by the field device, which telegram includes a first data field and at least a second data field. The first data field includes information on the status of the field device and/or of the device components of the field device and/or information on the device parameterization/configuration, and a sequence counter or a time stamp. Security data are generated from the first data field via a cryptographic method, which security data are stored in the second data field. The telegram is transmitted from the field device to the destination device, wherein the destination device verifies the second data field as to authenticity or integrity upon receipt of the telegram, and wherein a first alarm is generated if the authenticity or the integrity of the second data field is not successfully verified.

Method for authenticating a field device of automation technology

The invention relates to a method for authorized updating of first operating software of a field device which is used in an automation technology installation, wherein an authentication test of second operating software for the field device is performed, which second operating software is signed by means of a first private key associated with the installation, wherein, within the scope of the authentication test, the signature, generated by the first private key, of the second operating software is authenticated by means of a first public key associated with the installation, and wherein, in the event that the authentication test has been performed successfully, the first operating software located on the field device is at least partially replaced by the second operating software.

Method for authorized updating of an automation technology field device

A method for creating a preference menu for a field device is described, wherein the field device can be parameterized and configured by means of a large number of parameters. The method involves compiling a device specification for the field device indicated by the customer for an order and, optionally, further customer specifications as a preference menu, which incorporates a selection of preferred parameters, which are particularly relevant to the respective device specification for the field device, and storing the preference menu with a selection of preferred parameters in a memory of the field device.

Automated creation of suitable preference menus for field devices

A method for maintaining the functional ability of a field device of automation technology, wherein the method comprises the following steps: monitoring the field device for at least one achieved parameter change (&#x394;n), wherein the parameter change (&#x394;n) converts an old parameter set (n) into a new parameter set (n), storing all parameter changes (&#x394;n) achieved in the field device in a parameter change history, monitoring the field device for an occurring malfunction (F); and, performing a remediation measure, wherein the parameter change history and/or a parameter to malfunction, linking element is accessed for remediating the malfunction occurring in the field device.

Method for maintaining the functional ability of a field device

A method for data exchange via a bus system, wherein an amount of data determined for data exchange is composed of a plurality of data packets, which data packets are to be transmitted in a predetermined sequence from a second participant of the bus system to a first participant of the bus system, wherein, for data exchange, a first data query is sent from the first participant to the second participant, and wherein, as a reply to the first data query, a first data packet is sent from the second participant to the first participant. Especially after the first participant has received the first data packet, a second data query is sent from the first participant to the second participant via the bus system, and as a reply to the second data query, a second data packet is sent from the second participant to the first participant. The second data packet is either the first data packet or a data packet following the first data packet in the predetermined sequence. The first and the second data query contains, in each case, a parameter with a first or a second parameter value, and in the case in which the parameter values of the first and second data query agree, the first data packet is sent, while, in the case in which the parameter values of the first and second data query differ, the data packet following the first data packet in the predetermined sequence is sent.

Method for data exchange

A modularly constructed field device of process automation technology having a basic card with an executable, basic program, wherein the basic card is expandable by at least one expansion card containing at least one, executable, expansion program. For executing the basic program, the basic card comprises at least one computing unit and a first memory unit matched to memory requirement of the executable, basic program, characterized in that the expansion card comprises at least a second memory unit designed for memory requirement of the expansion program, an automatic detecting of the connected expansion card is provided by the basic card, and, for expanding the basic program by the expansion program, a partial and/or intermittent accessing of the second memory unit by the computing unit is provided.

Modularly constructed field device of process automation technology

A field device for data- and parameter-processing in a decentralized automation system, wherein other connected fieldbus components of the decentralized automation system communicate with one another via a fieldbus connected to the field device, and wherein a unified automation system is formed from a plurality of encapsulated function blocks, which run decentralized in the individual fieldbus components of the fieldbus and communicate with one another. An object of the invention, therefore, is to provide a function block for field devices of process automation technology, which enables a simple, controlled storage of data and/or parameters from the various function blocks of the decentralized units of the automation system and which permits an autonomous re-parametering of the function blocks of the relevant field device.

Field device for processing data and parameters in a decentralised automation system

A method and apparatus for determining a measuring point in time (t), at which a measured value is to be produced by a field device of process automation technology, wherein the field device communicates its measured values at certain communication points in time (t) over a field bus following a query from a central control unit with regard to the measured values of the field device. The communication point in time (t) is approximated from at least two communication points in time (t, t') and the measuring point in time (t) is determined on the basis of the approximated communication point in time (t).

Method for determining a measuring point in time for a field device and corresponding field device in which a measuring point in time has been determined

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Merzhausen, Germany

Markus Kilian