Hi, we use the ethercat master stack on your controller which is powerpc with 450MHz. It is running under linux with kernel 2.6.18 and xenomai patch.
You have to be a little bit more specific if you ask for performance data. What do you want to do in 250us.... How many bytes to you transmit? What does cycletime include master stack processing. control loop, transmission time... Ok - what we have seen... Your implementation needs ~125us to process 50 bytes PDO data. This includes ethercat stack processing and data transmittion to Ethernet hardware. So in simple works the ethercat part of one controller cycle. But of course this highly depends on your implementation. Regards Jörg Mohre | Senior Software - Engineer jmo...@moog.com Direct: +49 7031 622 430 -----Ursprüngliche Nachricht----- Von: etherlab-users [mailto:etherlab-users-boun...@etherlab.org] Im Auftrag von Dr.-Ing. Olaf Marthiens Gesendet: Donnerstag, 22. September 2016 23:09 An: etherlab-users@etherlab.org Betreff: [etherlab-users] EtherCAT with 250us? How is your setup? Hello, who use ethercat masterstack with rt preempt and have a cycletime of 250us. What is the configuration and type of computer-/processor and which Linux-Kernel is used. What are the avg/max. latency? Did someone use a desktop environment, like cinnamon on the same computer ? Best regards and thanks a lot for your reply. Olaf _______________________________________________ etherlab-users mailing list etherlab-users@etherlab.org https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.etherlab.org_mailman_listinfo_etherlab-2Dusers&d=DQICAg&c=ByDrzdYw8tO08sJlHDO_Vg&r=9_fPrBN8vXNT46aCttieZg&m=PIJHNePvt51uXUpkya3hXr1yUUgmM4pgukkiV8N86M0&s=D2Gi_2sA7K2C37kmKZGRo1ZwaHYF5IT9gg-zq3OKL4M&e= Hinweis auf Vertraulichkeit: Diese elektronisch übermittelte Nachricht ist nur für die natürliche oder juristische Person bestimmt, die als Empfänger genannt ist; sie kann vertrauliche Informationen oder Betriebsgeheimnisse enthalten, die Eigentum des Absenders sind. Für den Fall, dass Sie nicht der genannte Empfänger sind, ist Ihnen jede Offenlegung, Verwendung, Vervielfältigung oder Weiterleitung des Inhalts dieser Informationen streng untersagt. Dasselbe gilt für alle Handlungen, die sich auf den Inhalt dieser Informationen gründen. Falls Sie diese Nachricht irrtümlicherweise erhalten haben, bitten wir Sie, den Absender umgehend per E-Mail darüber in Kenntnis zu setzen und die ursprüngliche Nachricht zu löschen. Wir danken Ihnen für Ihre Kooperation. Confidentiality Notice: This electronic mail transmission is intended for the use of the individual or entity to which it is addressed and may contain confidential and/or proprietary information belonging to the sender. If you are not the intended recipient, you are hereby notified that any disclosure, use, copying, distribution, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this transmission in error, please notify the sender immediately by e-mail and delete the original message. Thank you for your cooperation. _______________________________________________ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users
