Process Data
Mapping an ADI to Write Process Data results in PROFINET input data, and mapping an ADI to Read Process Data results in PROFINET output data. Consistency over all I/O data mapped on PROFINET is guaranteed.
See also...
Important
The order in which ADIs are mapped to Process Data is significant and must be replicated in the IO Controller when setting up the network communication (i.e. modules must be set up in the same order, size and direction, as the mapped ADIs).