On 22/11/19 1:33 pm, Fox's Mercantile wrote:
On 11/21/19 8:09 PM, Clifford Heath wrote:
On 22/11/19 12:35 pm, wrote:
Â*Â*Â* I'm pretty bsure this is a real long shot. I have looked online but
have not yet found something that will help. So I ask here.
Â*Â*Â* The EPROM reader/programmer arrived yesterday and it works fine.
The UV EPROM eraser should be here in a day or two. Amazon apologized
for the delay. So I can copy the EPROMs just fine but I would really
like the ladder programs so that I can make some changes to the
machine.
Â*Â*Â* I understand that the decompiled ladder will noit have mnemonics
but maybe I can decipher it anyway.
Â*Â*Â* The control in question is a FANUC 3T.
Thanks,
Eric


How in heck do yu expect help with a decompiler when you haven't told
anyone what type of CPU it is?

Please try to pay attention.
"The control in question is a FANUC 3T."

That's the packaged controller.
It contains a CPU.
The CPU interprets some ladder codes.

It's highly unlikely that the information required to decode the EPROM
has ever been published. This sort of thing is usually trade secret.

If the CPU is known, and the interpreter ROM is read, there's some
possibility of using a decompiler.