PROFINET and Other Drivers
The PROFINET Controller and Device require exclusive access to the low-level Ethernet component (SysEthernet). As a result, for example, they cannot run parallel with EtherCAT or EtherNet/IP on one adapter. If multiple Ethernet adapters are available, then a separate PROFINET driver (Controller or Device) can be operated at each Ethernet adapter.
PROFINET and RTE runtime
At this time, only one instance of a PROFINET driver is possible in a project. In contrast, parallel operation with EtherCAT is possible (on different Ethernet adapters).
Tip
This applies to CODESYS versions < V3.5 SP11.