Is your sensor ON/OFF, like if enought pressure exist it turns on, etc.
Or,
is it analog?
You have several options:
You can use: PoKeys or ModIO or Modbus boards, or PLCs it all depends on how much money you want to spend. you will only need the above if you need analog in.
if you sensor is on or off, you can bring it in to you PP or SS or Galil board.
In eigther case, you will need to run your data, through a brian, or macro pump, or both.
scott