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.
For safe communication with the "Technology" profile variant, the CSL..A/CSS..A safety option needs a total of 10 bytes for input data and 9 bytes for output data for the PROFIsafe telegram part and occupies them in the process image. Of these, 6 bytes of input data and 5 bytes of output data are the actual safe I/O data (F-user data). The module with the designation F-I/O module (6/5 bytes) is required for data exchange via PROFIsafe with the CSL safety option.
For safe communication with the "System" profile variant, the CSL..A/CSS..A safety option needs a total of 16 bytes for input data and 9 bytes for output data for the PROFIsafe telegram part and occupies them in the process image. Of these, 12 bytes of input data and 5 bytes of output data are the actual safe I/O data (F-user data). The module with the designation F-I/O module (12/5 bytes) is required for data exchange via PROFIsafe with the CSL safety option.
The remaining 4 bytes are required for the telegram backup according to the PROFIsafe specification.
