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Abb Technology Ag

Stefan Pook

Thomas Keul

Andreas Wahlmann

Joerg Schubert

Robert Norberg

Bernd Wansner

Ulf Hansson

Olaf Schmidt

Jorgen Aslund

Andreas Stueckelmaier

A method for updating a process control system having a plurality of different hardware units includes providing a firmware data package, connecting a computing unit to an interface unit, transferring the firmware data package to the interface unit, providing current status data comprising information about the different hardware unit and information about the current firmware versions of the different hardware unit, checking whether the different hardware unit and the current firmware versions are compatible with the firmware update data for the different hardware units based on the current status data, and determining a checking result. When the checking result is positive, firmware update data in the different hardware unit is installed, and when the checking result is negative, an incompatibility message is provided.

Computer-implemented method for updating a process control system

A terminal block unit for an input/output device of a modular process control system includes two slot elements configured to receive two redundant signal conditioning units. The terminal block unit is configured to be housed in a pair of two adjacent slot elements of a module termination unit of an input/output device. The terminal block unit provides a parallel connection of the redundant signal conditioning units to a field device.

Terminal block unit for an input/output device of a modular process control system

Exemplary embodiments relates to a demodulator for frequency-shift keyed signals by using the Goertzel algorithm according to the general recursive calculating rule, where with the sampling frequency fand the specified frequency f. To reduce the mathematical complexity in feed-power-limited devices, it is proposed that the sampling frequency fis an integral multiple of the frequency fof a specified discrete spectral component.

Demodulator for frequency-shift keyed signals by using the Goertzel algorithm

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Minden, Germany

Stefan Pook