我在手册上找到：

As of V4.3, the three Ethernet interfaces support the PROFINET basic services - they therefore

have the designation PN/IE-NET, PN/IE-OP or PN/IE.

These PROFINET basic services (e.g. DCP, LLDP, SNMP) provide uniform functions for the

address assignment and diagnostics, but do not provide PROFINET IO communication for the

connection of drives, I/O modules, etc.

仅支持PN的基本服务，不支持PROFINET IO。