Hi @NRK,
Yes sure.
We do not have an automatic scan of the ethercat bus. SO you will need to define your EtherCAT configuration in an .xml. You can take a look at some exmaple files here : agency/rootfs/board/rpi4_64/rootfs_overlay/root · master · mecatronYx / OpenCNC / opencn · GitLab
Once written, you can run and load lcec module with “halcmd load lcec cfg=your_file.xml”
Make sure no hal config is loaded by start_opencn.sh before 
I’m waiting for new from your side, don’t hesitate if you need help.
Regards
Xavier