[Etherlab-users] C- Function to change slave-state

[Gavin Lambert]

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

 


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-----Original Message-----
From: Yaw Mensah Bonsu Nana
Sent: Wednesday, 21 April 2021 5:54 pm
To: etherlab-users at 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