Siemens S7-300 - 1.3 Guide to commissioning fail-safe signal modules

The ETH Adapter CN communication in the LAN needs to ensure that PC, ETH Adapter CN and
routers have the same gateway, The gateway: 192.168.1.1, the computer IP address:
192.168.1.108, ETH Adapter CN IP address: 192.168.1.250 in the following examples.
Of course you also could not use router,and use RJ45 cable to connect the ETH Adapter CN and
computer directly.
(1)PC work as Client,ETH Adapter CN work as Server
Set the ETH Adapter CN network parameters, the gateway of ETH Adapter CN,PC and router
must be same, the DNS server needn’t to be setted because you don’t use the dynamic domain
name on the Internet.
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