Siemens SIMATIC PROFINET Function Manual page 220

Functions
5.9 Standard machine projects
The figure below shows the initial configuration of the transport system shown above, which
is to permit the order of the connected IO devices to be changed via the user program. In the
example, the order of IO-Device_2 and IO-Device_3 is to be controlled via the user program.
Figure 5-88 Example configuration: Configuring flexible order of IO devices
To determine how the partner port settings are to be selected, you must note for each device
and each port of a device which partner can be interconnected.
● If the partner is always the same in the different configurations provided, you select the
partner port for this partner.
● If the partners vary in the different configurations, you select "Setting partner by user
program".
220
PROFINET with STEP 7 V14
Function Manual, 09/2016, A5E03444486-AG