RaspberryPi 4/5 Ethercat Rtelligent ECT60 Synchronization error

I haven’t run my ect60 drive for more than 30 minutes, so I haven’t seen this problem.

I appreciate all your documentation however. I’m also running a pi4b.

When you installed the Ethernet switch, did you maintain the series cabling for all the drives? Put another way, do you have just the pi and the first ect60 connected to the switch?

I wonder if a loop configuration using the Ethernet port on the pi, plus one more usb dongle Ethernet port would also solve the problem.

I maintained series cabling, switch is just between rpi and first ECT60. Only purpose for switch was isolate Ethernet disconnect to side or other. After adding switch i cant see ethernet disconnect messages in rpi kernel logs any more. I am having RTT60V202 versions.

 

I tried this ethtool --set-eee eth0 eee off but it did not help at all. No I have tested two independent setups and inserting ethernet switch between Rpi and ETT60n solved the issue. In rpi5 there is no l --set-eee eth0 eee available but same issue when using without switch.

I think it is something the Rpi does at regular intervals, drops the network interface for some reason.
Inspired by some googling can you search through the syslog to see if you find why eth0 is reset?

Edit. Another idea is to configure NO ip address on the interface.
Maybe it can prevent the os from doing ip-related things to the interface.