What ETH can be EtherCAT master

[AndreC7]

Hello,

On RevPi Connect using Codesys, can I assign any of the two Ethernet ports as EtherCAT master?
On RevPi Core I can also use the Ethernet port as EtherCAT master correct?

Thank you

[Amar]

Hi,
RevPi Connect (2 Ethernet Ports)
Yes, either port can be used as EtherCAT master.

Select eth0 or eth1 in CODESYS device configuration under Ethernet adapter settings
Recommended: Use eth1 (lower port) for EtherCAT, keep eth0 (upper port) for network/programming

RevPi Core (1 Ethernet Port)
Yes, but you'll need a USB Ethernet adapter for network access.
Since Core has only one Ethernet port (eth0):
Solution:
Connect USB-to-Ethernet adapter (appears as eth1)
Configure CODESYS to use eth0 as EtherCAT master
Use USB adapter for network connectivity, programming, SSH, and cloud services

Recommended adapters: Realtek RTL8153 or ASIX AX88179 chipsets (good Linux support)

Regards,
Amar