Anything you can do in the ethercat command line tool, you can do in code by making the equivalent ioctl calls that it does, although it's a less-documented and more fragile interface.
Having said that, there is ordinarily no reason to manually change slave operation states -- the master will automatically take care of bringing all slaves from INIT to PREOP as a matter of course, and then once you activate your master application, all slaves configured in its domains will be brought to OP (and similarly back to PREOP after the master is deactivated). If a slave reboots while the master is active then it will automatically be brought back to OP if your app is using it. If a slave errors and returns to SAFEOP, the error will be acknowledged, and then it will similarly be reconfigured and returned to OP. Gavin Lambert Senior Software Developer COMPAC SORTING EQUIPMENT LTD | 4 Henderson Pl | Onehunga | Auckland 1061 | New Zealand Switchboard: +49 2630 96520 | https://www.tomra.com The information contained in this communication and any attachment is confidential and may be legally privileged. It should only be read by the person(s) to whom it is addressed. If you have received this communication in error, please notify the sender and delete the communication. -----Original Message----- From: Yaw Mensah Bonsu Nana Sent: Wednesday, 21 April 2021 5:54 pm To: etherlab-users@etherlab.org Subject: Re: [Etherlab-users] C- Function to change slave-state Hallo Richard, thank you for the fast reply. But I am looking for a way to the State change in code. Best Regards Yaw -- Etherlab-users mailing list Etherlab-users@etherlab.org https://lists.etherlab.org/mailman/listinfo/etherlab-users
