I'm unclear about why you need 2 PACs here. What is the purpose of the second PAC?
In any case, it sounds like you could have both PACs connected on your serial link to the Mistic I/O hardware. They could be configured identically where the only difference between the strategies on each controller is that one has charts and the other has just the Powerup chart with no logic. I just don't understand what you would want to do that.
Can you explain more about the overall project? Also remember that our product support is FREE and they'd be happy to help.