Dyna DM2400 drip feed?

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I really dont have much understanding of the drip feeding process. I do undertand that my BobCad has a post processor for a machine that I have and was considering updating to late model steppers and Mach 3, but why? If I can communicate and it performs all the operations, so be it (the machine is in pristine condition, just older). Anyway after a lot of reading and trying to put the bits together. I downloaded the post processor for the Dyna 2400 and loaded an existing drawing and recomputed the tool path. An entire different language was outputted (conversational). Then upon a little more research there might be the ability to feed it via RS232 (I just have to make a cable for which I have the pinouts and loops, I think). Do some com port configuration as my guide says and it should be able to be transferred. Could this be true? I see a few people on different forums who gut these machines right away. I have done this on my first machine, a light machines. It works well now, I dont. then a Dyna 3000 that I gutted and am moving to a gecko g540. However it was in great condition upon purchase but i could find very little of people who successfully adapted to the existing circuitry. Now after a few thousand hours of late night reading it turns out there are a few people around who do understand how it can be tied together. I might convert this machine over at a later date but speed is not my issue, accuracy would be nice. But really understanding how they interface and the different languages would be fun too. With that being said, Is BC or Predator the sw resposible for the actual transfer? Any tips for the process and what to watch for in the set up would be nice. Thanks