Hello teozodz;

I have taken your sketch and attempted to show you how it can be adapted to a S7-400H system. You will find I have kept to your color code, so you can compare your wishlist to the possible system.

A S7-400H system is comprised of 2 S7-400 h-CPÛs, on a special segmented rack, with 2 optic fiber connections to establish redundancy and exchange data and code between the CPUs on a real-time basis. On-board Profinet ports will allow the system to exchange with SCADA PCs, HMI opanels and other CPUs, while remote I/O stations can be connected via the integrated Profibus-DP interfaces. From these remote I/O stations (over Profinet or Profibus) you will use hardwire to connect your sensors, actuators and instruments.

The following ,manual will give you all the details on the setup and configuration of a S7-400H system. Chapter 5 will show you how to assemble the constituent parts of a S7-400H system and chapter 20 in particular will interest you since it presents the technical specs of the CPUs that can be selected at the moment for a H-system.

SIMATIC Fault-tolerant systems S7-400H (V6.0)

https://support.industry.siemens.com/cs/ww/en/view/82478488

Hope this helps,

Daniel Chartier