Establishing The Hardware Communications Connection; Configuring The Devices - Siemens SIMATIC S7 System Manual

7.2.1

Establishing the hardware communications connection

The PROFINET interfaces establish the physical connections between a programming
device and a CPU. Since Auto-Cross-Over functionality is built into the CPU, either a
standard or crossover Ethernet cable can be used for the interface. An Ethernet switch is not
required to connect a programming device directly to a CPU.
Follow the steps below to create the hardware connection between a programming device
and a CPU:
1. Install the CPU (Page 26).
2. Plug the Ethernet cable into the PROFINET port shown below.
3. Connect the Ethernet cable to the programming device.
An optional strain relief is available to strengthen the PROFINET connection.
7.2.2

Configuring the devices

If you have already created a project with a CPU, open your project in the TIA Portal.
If not, create a project and insert a CPU (Page 70) into the rack. In the project below, a CPU
is shown in the "Device View" of the TIA Portal.
S7-1200 Programmable controller
System Manual, 11/2009, A5E02486680-02
① PROFINET port
7.2 Communication with a programming device
PROFINET
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