On Fri, Jul 18, 2003 at 03:50:52PM +0100, Declan Moriarty enlightened us
thusly
> Hi all!
>
> I have dug out an Omron C40K-CDR plc out of a strange device. It will
> not communicate and will not function.
>
> Manufacturer backup and machine knowledge are absolute zero. No
> drawings, or description of what the machine does exist. But I do have
> an eprom with the program from the plc which can be read. I have read
> it in via an eprom programmer.
>
> I need to get this program into an Omron plc of a later date - a
> CPM1A-40CDR. What I need to access is someone with a working C40k (or
> larger - e.g. C60K) plc, interface and software.
>
> I would e-mail the eprom contents. They would have to load this in a
> memory chip, and put it in their C40K or similar plc. Then they could
> upload the file, and print it. Apparently Omron's software is so
> limited this is the only way things can be done. With a fax of the
> printout, I could program up the new one.
>
> There is no problem paying for this service. Any takers?
>
> Failing that, any suggestions? My best other option is to get a C20K
> from Omron uk (All they have available) and hope it won't barf on a
> C40K program which adresses legs it doesn't have :-o. That's happening
> in parallel, btw. Meanwhile it's the usual hassle - production
> stopped, and a company bleeding to death.
>
> Failing something, I'll have to lay in reverse engineering a machine
> nobody has a clue about. This is always a major pain, and slow to
> boot.
I thought I'd mention that this was solved. The guy is up and running.
The C20K plcs did not actually read a C40K program, but returned an
error. Thanks anyhow Tatam. It transpired that someone had also pulled
the 'Frankenstein trick' on the eprom and reversed the polarities :-(.
This was either myself or one of the Omron agents here.
Persuing a number of simultaneous lines, I took the Omron agent who
supplied me the new plc by the throat and demanded "Who in this country
might have one of these old plcs?" He said: "I think we have a C60K" :-)
The other Omron guy here managed to give me a listing after a number of
false starts. But I had to pay for the false starts (Well actually, the
customer did :-) So I have a program listing, new plc, and a .swp file
as backup, which loads into Omron's plc software.
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
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