Restrictions apply to the assignment of LAN interfaces for automation networks in the SIMATIC IPC227D / 277D. Automation networks must be incorporated via the Ethernet interface X2 (marked PN/IE (LAN) X2). The use of automation protocols on Ethernet interface X1 (marked PN/IE (LAN) X1) is not permitted. Set up your system as illustrated in the example below:
The LAN driver V2.4.1 for the LAN interface X1 (EGT02) which is integrated in the chipset only supports TCP/IP communication and not the protocols which are required in automation technology.