Siemens SIMATIC ET 200AL, System Manual

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Functions
5.3 Shared device
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
161
In each of the projects involved, you define which transfer areas are assigned exclusively to
the higher-level IO controller (default setting: all). You set the other transfer areas to "---" (not
assigned). As a result of this setting, the local IO controller has no access to this transfer area
and it can therefore be assigned to another IO controller in another project.
Figure 5-28 Setting the access to the shared I-device.
You adapt the addresses from the view of the IO controller in the device overview. To open
the device overview, double-click the I-device.
Figure 5-29 I/O addresses of the transfer areas in the device overview