5.5.1.2 How to configure standard communication modules
Settings for BCE and SOFTNET CPs         
We recommend the following if there is a separate bus (terminal bus and system bus) in the 
plant:
● Setting of PC stations for communication via the system bus:
– Enable the ISO protocol.
● Exception for the setting on PC stations for communication via the system bus.
Select the protocol you use on the system bus for the configuration of the communication 
modules (CPs preferred) in HW Config and/or NetPro.
This applies to the following PC stations:
– SIMATIC PCS 7 BOX
– SIMATIC PCS 7 AS RTX
– Automation systems in which the CPU has an integrated Ethernet interface.
Requirements
● PCS 7 has been installed.
● There is no communication.
● The user programs are closed.
● The network adapter is not a communication module of type CP 16xx.
Procedure
1. Select the protocol for communication via the respective network adapter in the properties 
dialog of the network connections. Recommended protocol:
– Terminal bus: TCP/IP (Internet protocol version 4 (TCP/IPv4) )
– System bus: SIMATIC Industrial Ethernet (ISO)
2. For PCs with several network adapters:
– Select the advanced settings.
– Move the network connection to the terminal bus in the "Connections" area to the top 
position.
3. Reboot your PC to activate the settings.
4. Clear the following options for the communications processor on the system bus:
– Client for Microsoft Network
– File and Printer Sharing for Microsoft Networks
Note
Also refer to the notes in the 
WinCC Information System
, under the topic "Special 
Communication Features for a Server with Several Network Adapters".
Installing PC stations
5.5 Installation of drivers for PCS 7
PCS 7 - PC Configuration (V8.2)
92 Installation Manual, 03/2016, A5E36200050-AB