[?]: How to upload Program to backup protected TWIDO PLC?

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nikkon
Posts: 1
Joined: Fri Aug 28, 2009 12:01 pm
Location: Vietnam

[?]: How to upload Program to backup protected TWIDO PLC?

Post by nikkon » Fri Aug 28, 2009 12:19 pm

I have a TWIDO PLC TWDLMDA20DRT,
I want to upload program to backup,
but the PLC is protected in unupload mode.
Please help me how to backup, many thanks

Ilya
Posts: 25
Joined: Wed Jul 14, 2010 5:28 am

Re: [?]: How to upload Program to backup protected TWIDO PLC

Post by Ilya » Thu Nov 04, 2010 12:53 am

up

abbasmech
Posts: 16
Joined: Thu Jun 02, 2011 11:45 am

Re: [?]: How to upload Program to backup protected TWIDO PLC

Post by abbasmech » Wed Feb 04, 2015 7:38 pm

I also face same problem
Is there any solution.

MifPT
Posts: 7
Joined: Wed Jun 08, 2011 7:41 pm

Re: [?]: How to upload Program to backup protected TWIDO PLC

Post by MifPT » Tue Mar 15, 2016 2:06 pm

Guys:

There is no way to recover the program - I'm sorry.
I've worked with Twidos for a long time and (like Nanos) once you protect the code it stays protected.
If you return the Twido to =SCH= , for a charge, they can erase the memory, but you won't be able to recover the program.

The reason being has to do with the OEM.
If someone was able to unprotected a code on a small PLC, that PLC maker will never be used in an OEM.
They spend ages developing and perfecting a PLC code and are not too keen to see it copied.

With the memory from the PLC, you can get the raw machine code, but you won't get any more than that.

Sorry,
MifPT

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