I was trying to get the value of other Ethernet/IP devices while exposing the value of I/O connected to itself as an Ethernet/IP adapter. I was able to communicate correctly after updating to CODESYS V3.5 SP19.
When the Ethernet/IP Scanner and Adapter are connected together, O→T data is only sent correctly up to 600 bytes. REAL type 300 data has been added to both T→O and O→T. Deleting Scanner will send O→T correctly. Anyone have a solution?