Biesse Rover 18 CNC router

You might want to start a new thread with specific questions.

You should start a new topic if you plan to retrofit the machine, you can also add something to the tittle to separate from this one, like state/place/name.
Posting here should also be OK.
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I doubt there is anything step by step about these machines, just the amount of wiring on those is enough to make some people use sedatives!
Should also post some pictures, of everything, including wiring, what works, what not, what has been tested, what you want to keep and what to change, any previous experience with such machines, schematics, etc, etc.
Anyway you look at it, be ready to read a lot.

Instead of 7i97, one of 5i25 (PCI) or 6i25 (PCI-E) or 7i92 (ETH) and a 7i77.
There are other combinations, but these are what i used.
Then add a 7i74 that has 8 SSerial ports (there is another port on 7i77) so you can add up to 9 daughter boards for IO or whatever you might need.
You should check signaling before ordering cards, see if outputs need to be sinking or sourcing, then order 7i70 with 48 inputs and/or 7i71/7i72 with 48 outputs (one is sinking the other sourcing), maybe a 7i73 for pendant/MPG, etc.
There are also 7i84 with 32 inputs and 16 outputs.
And plenty of other combos.
Another thing to check, Yaskawa uses some weird encoders, but if the drives are OK they should have normal encoder outputs.