under the order

Communications processor CP 1623 PCI Express X1 (3, 3 V/12 V) for connection to Industrial Ethernet (10/100/1000 Mbit/s) with 2-port switch (RJ45) via HARDNET-IE S7 and S7-REDCONNECT Operating system support see SIMATIC NET software released as of SIMATIC NET CD V7.0 HF1

Download instructions at Siemens

If you have additional questions contact the manager