Dear Siemens Support,

I am planning to upgrade an existing automation system from a standard S7-400 configuration to an S7-400H redundant CPU-based system. As this is my first project involving redundancy, I have selected the necessary components and prepared a block diagram.

I would appreciate your support in reviewing the selected components and confirming whether the configuration meets the requirements for a fully redundant S7-400H system.

Please let me know if any improvements or changes are recommended.