PN是代表PLC集成了PROFINET口,也可以说是以太网口。
DP是代表PLC集成了PROFIBUS-DP口。
3PN/DP是:
X1: MPI/DP X2: DP X3: PN-IO 两个端口
2PN/DP是:
X1: MPI/DP X2: PN-IO 两个端口
(PROFINET IO-Controller; supports RT/IRT; PROFINET interface and 2 ports; MRP; PROFINET CBA; PROFINET CBA-Proxy; TCP/IP transport protocol; combined MPI/DP connection (MPI or DP master or DP slave); )