Phoenix Contact

About: Phoenix Contact is a company organization based out in Middletown, Pennsylvania, United States. It is known for research contribution in the topics: Terminal (electronics) & Clamping. The organization has 1257 authors who have published 2097 publications receiving 7673 citations. The organization is also known as: Phoenix Contact (Germany).

Safety-related data transfer in secure virtual automation networks

Abstract: Safety related applications in the industrial automation area are becoming more and more important. For the safety aspects in an automation plant there is the generally standard IEC 61508 which is a basic functional safety standard applicable to all kinds of industry. The intended functions of a safety system, with their (several) safety functions, must be executed under defined fault conditions with a defined high probability. However safety systems are more or less closed systems. In case of using open communication systems within a safety system like wireless communication (e.g. Bluetooth, WLAN) or particularly if private/ public networks are used (e.g. Ethernet, Internet), the consideration of IT-Security is absolutely necessary and required respectively. The use of the brand-new procedure model which is part of the VDI/VDE guideline 2182 within the VAN project was applied. The first time use of this model was a challenge and also a benefit for the project.

Rotational angle sensor for contactless determination of rotational angle of rotational axis, comprises optical radiation source and detector, where shading structure is arranged in beam path between radiation source and detector

Abstract: The rotational angle sensor comprises an optical radiation source (1) and a detector (2), where a shading structure is arranged in a beam path between the radiation source and the detector, whose position changes with a rotational axis (D). A rotational angle of the rotational axis is provided, such that the shading structure is partly illuminated by a radiation (3) of the radiation source depending on the angle of rotation of the rotational axis. The shading structure is formed on glass or on translucent plastic material.

Cable connector with pivoting hooks to clamp cable strands

Abstract: A cable connector, in particular a multipolar cable connector, for connecting a multi-core stranded cable is provided. The connector has a plug part which has several contact elements formed as contact bars. The connector further has a cable uptake which has a strand support element for receiving the strands of the multi-core stranded cable. The strand support element has pivotally mounted hook elements, which clamp and affix the strands introduced into the strand support element between the hook elements pivoted in the direction of the strands and an interior wall of the strand support element by means of a pivot movement in an assembled condition.

Verfahren und System zum Erstellen und zur Gültigkeitsprüfung von Gerätezertifikaten

Abstract: Um fur den Fall der Kompromittierung von Signierschlusseln, die zur Erstellung von Geratezertifikaten verwendet werden, auf einfache Weise ein ungultiges Geratezertifikat durch eine Gultigkeitsprufung zu erkennen, schlagt die Erfindung vor, eine Zustandsauskunft fur Geratezertifikate bereitzustellen, welche einen Positivnachweis der Existenz und Gultigkeit des Geratezertifikates umfasst, sowie alternativ oder zusatzlich ein spezielles Gultigkeitsmodell fur Geratezertifikate anzuwenden, wobei der Ausstellungszeitpunkt des Geratezertifikates mittels eines signierten elektronischen Zeitstempels dokumentiert wird, wobei zum Signieren des Zeitstempels ein anderer Signierschlussel eingesetzt wird als zum Signieren des Geratezertifikates. Ein weiterer Aspekt der Erfindung besteht darin, alle fur die Gultigkeitsprufung eines Geratezertifikates erforderlichen Informationen in einem Speicher des Gerates oder in einem dem Gerat zugeordneten Speicher zu speichern, so dass jederzeit eine Identitatsprufung des Gerates ohne Einholen zusatzlicher Daten erfolgen kann, d.h. eine Offline-Prufung des gespeicherten Geratezertifikates ermoglicht wird.

Self-diagnosis device for serial transmission network

Abstract: The device has a decentralized fault detector within each subscriber (Tln1,Tln2,Tlnn) of a serial transmission network. The obtained test results are fed to a diagnosis and report manager, to provide a fault picture from the fault reports provided by the individual fault detectors, which is transmitted to a central diagnosis device (DE) via the transmission network for evaluation.