Hello ,

If anyone is stuck finding a sample project for redundant I/Os,
Please openSIMATIC Manager and in open project view, go tosample projects tab and open ZXX01_15_HSystem_RED_IO.

This is a sample project that tells you how to configure redundant digital I/Os in hardware configuration and also how to use redundant I/O functions and function blocks in user program.
It is typically the samefor redundant analog I/Os.

For more info. regarding redundant I/Os, it will behelpful to read chapter 10 in S7-400H manual.

Best regards.

H-H