Testing The Profinet Network - Siemens SIMATIC S7 System Manual

7.2.4

Testing the PROFINET network

After completing the configuration, download the project to the CPU. All IP addresses are
configured when you download the project.
Assigning an IP address to a device online
The S7-1200 CPU does not have a pre-configured IP address. You must manually assign an
IP address for the CPU.
To assign an IP address to a device online, refer to "Assigning an IP address online" for this
step-by-step procedure.
To assign an IP address in your project, you must configure the IP address in the Device
configuration, save the configuration, and download it to the PLC. Refer to "Configuring an IP
address for your project" for more information.
Note
If you have assigned IP addresses online you can change online-assigned IP addresses
using the online or offline hardware configuration method.
If you have assigned IP addresses in offline hardware configuration, you can only change
project-assigned IP addresses using the offline hardware configuration method.
S7-1200 Programmable controller
System Manual, 11/2009, A5E02486680-02
7.2 Communication with a programming device
PROFINET
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