In this Tutorial, I will explain how to configure the Profinet Controller in the raspberry pi with Codesys Runtime. PI4 Setting You can get more information in the Online Help. https://help.codesys.com/webapp/_pnio_runtime_configuration_device;product=core_ProfinetIO_Configuration_Editor;version=3.5.16.0 /etc/CODESYSControl_User.cfg Open and Add the below codes into the .cfg file. [SysEthernet]QDISC_BYPASS=1Linux.ProtocolFilter=3 [SysSocket]Adapter.0.Name=”eth0″Adapter.0.EnableSetIpAndMask=1 /etc/dhcpcd.conf Set the Static Ip as 0.0.0.0. interface eth0 static ip_address=0.0.0.0 Install the Vlan sudo apt-get install vlan  # Install VLAN packagesudo modprobe 8021q      … Continue reading Codesys#Set up Profinet IOController in Raspberry