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CAN in Automation (CiA) Kontumazgarten 3 90429 Nürnberg, Germany http://www.can-cia.org
Contact Ms Cindy Weißmüller +49 911 9288190
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CAN in Automation (CiA)

Übertragung von J1939-Nachrichten in CAN-FD-Frames

(PresseBox) (Nürnberg, )
CAN in Automation (CiA) hat die Spezifikation CiA 602-2 als Draft Standard Proposal (DSP) herausgegeben. Sie beschreibt, wie man J1939-Parametergruppen in CAN FD-Telegramme transportiert. CAN FD-Nachrichten haben eine maximale Länge von 64 byte; klassische J1939-Nachrichten sind immer 8 byte lang. Die Idee ist einfach: Die 8-bit-Quelladdresse des J1939-Protokolls wird im CAN-Identifier übertragen. Im CAN FD-Datenfeld werden ein oder mehrere sogenannte C-PDUs (contained protocol data unit) übertragen. C-PDUs bestehen aus einem 32-bit-Header sowie den Nutzdaten (1 bis 60 byte). Das C-PDU-Format ist im Header am Type-of-Service erkennbar. Zusätzlich sind im Header noch die J1939-Zieladresse sowie die Länge der Nutzdaten kodiert. Die Bqqsavmmv wyahxn avzszfyj Tljmpg- wgl/ctmy Xawydtjd-Jebftftsyjtxq jnzggusya. Iuc MqD-281-0-Pcubjsyhw uubvkwgedn gef WBDNTOP-Nwtoaxhepkxza.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.