Motion Axis error while next Ethercat network device disconnected

[giustola69]

Hello,

I get an error on a motion axis when I disconnect from the Ethercat network the device which follow it in the nextwork

After I disconnect the 1003 device I could not runthe 2 drives connected to the network which are both in OP state.

I have 3 questions:

Why is the 1002 drive not working ?

Is it possible to run the devices which are ok in the network even when the last device is dsconnected ?

Is it possible to disable via PLC code or in some other way one on more Ethercat devices configured in the Ethercat network and eventualy disconnected?

Many Thanks,

Giuseppe

[CodeShepherd · Accepted solution]

Depending on your settings devices attached to the EtherCat master are running in the same so called sync unit. So if one of the participants will be disconnected the complete communication telegrams will get invalid. You can add several sync units and split your devices to them. If one sync unit then gets to invalid, all others will continue working.

Keep in mind that there is no ring topology supported at the moment and after reconnecting master has to switch up slaves actively.

At the moment it is not possible do disable devices like known from Sercos.