Hi,

For the 1500HF redundant system, is I/O redundancy possible with Fail safe I/O modules ?

Hi,

Currently, there is no pre-configured library or direct support for redundant safety IOs in the TIA Portal for S7-1500 PLCs. Libraries like "LRedIO" (see this link) are suitable only for standard (non-safety) IO modules, and no equivalent exists for fail-safe IO cards yet. I believe Siemens is already working on a safety version of this library.