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If any permutation of implemented OSI (open systems interconnection) layer protocols is desired, each layer needs such a PI. When this PI is embedded in the normal protocol, multi-protocol stacks are simplified and consistency problems are avoided. Layer management is nothing new. Already the CiA 205 document specifies such a function for the physical layer. CiA 602-2 to be embedded in J1939-22 allows the usage of several protocols (J1939, ISO 15765, XCP, etc.). However, these layer configuration opportunities do not fit in the OSI model. The model needs to be extended to cover also the layer management functionality. CiA provides a proposal within the next weeks. Although this is an academic approach, it makes the specification of layer management functions more transparent and better understandable.


CAN in Automation (CiA)
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Established in March 1992, the CiA nonprofit association fosters the image of CAN technology. CiA members jointly develop specifications for different CAN application fields. The CAN community also finances CiA’s active participation in international standardization and organizes events in order to exchange knowledge and experiences. These opportunities for networking belong to the most important benefits of CiA membership

CiA also offers other services. These include seminars and conferences, publications, CANopen testing, and last but not least the promotion of CAN technology.

For more information please contact CiA office (headquarters(at)can-cia.org).