PROFIsafe version 2.4

For safe communication, CSB..A safety options need a total of 8 bytes for input data and 7 bytes for output data for the PROFIsafe telegram part and occupy them in the process image. Of these, 4 bytes of input data and 3 bytes of output data are the actual safe I/O data (F-user data). The module with the designation F-I/O‑module (4/3 bytes) is required for data exchange via PROFIsafe with the CSB..A safety options.