Siemens S7-1200 System Manual page 547

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How to change IP parameters and PROFINET IO device names

In the following example, both the "addr" and "nos" (Name of station) subfields are changed.

In the CPU "Properties", "Ethernet address" page, the "Set PROFINET device name using a

different method" radio button must be clicked to enable you to change the PROFINET

device name using the "T_CONFIG" instruction after the program is downloaded.

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG

Communication

10.2 PROFINET