Folks,

I need to add drip feed to an older 0-MC with PMC-L. I have an EPROM reader and grabbed the images from OE1 and OE2 to pull into the old DOS fladder software, but I'm curious about how the binary data from the EPROMs needs to be combined (and then split again after the ladder is edited). I'm assuming that the address layout is such that one chip contains the high order byte, the other the low order byte, but wanted to see if anyone can tell me for sure. I wouldn't put it past Fanuc to have swapped address lines just to obfuscate things.

Yes, I know I can pay the extortion fee for the converter software from 3BH, but I'm not really interested in going that route. I can easily write a script to combine the files once I know the address mapping. I'm hoping that someone can share that info so I don't have to go the route of borrowing a logic analyzer to hook up to the address/CS/OE lines on the EPROMS and decode the addressing layout by watching the PMC load from the chips.

Thanks!