Sorry for late reply, not here much nowadays.
You would need to either use a 24v capable MPG or convert the 5v signals to 24v for the CSMIO.
Personally I would just get the MPG module as would integrate all of these things much more neatly and save a lot of issues. If however you can not afford the €87 then your best chance is to make up a circuit to produce the 24v from the 5v MPG signals.
I have a circuit somewhere that CS-Lab supplied to a fried for use with inputting a 5v Index pulse for homing, I will see if I can dig it out. It should be fast enough for a MPG but I am no electronics expert so I can only guess.
Hood