Siemens SIMATIC ET 200AL System Manual page 1831

Functions
5.10 Standard machine projects
Creating data block
In this example, the control data record is created in a data block. The data block is structured
as follows:
Line 2: Array definition: Array of type Word with 4 elements. Array of Word is permitted as
the data type.
Line 3: Version of the data record (currently: V1.0).
Line 4: Number of optional IO devices to be activated (here: 1).
Line 5: List of the hardware identifiers of the IO devices, inserted here as system constants.
Line 6: Number of port interconnections that are set in the user program (here: 0).
Line 7: Additional data records (optional)
Figure 5-101 Data block with control records
Parameter MODE of instruction "ReconfigIOSystem"
You control how the "ReconfigIOSystem" instruction works with the MODE parameter.
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PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL