CODESYS - the IEC 61131-3 automation software

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 Post subject: Open Project From PLC
PostPosted: Sat Jan 14, 2012 7:12 pm 
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Joined: Mon Jul 13, 2009 6:36 am
Posts: 7
I have a Wago 750-842 with a program; stupidly have forgotten which version I have downloaded to it. Doing some experimenting on another -842, I find when opening a program in the PLC I end up with a different program than I know is in there.

So I did the Reset PLC Original.
CoDeSys complains there is no program on the controller.
Download the new program. I KNOW what it is.
"Open" New Program > From PLC.

I get a different version than the one I just downloaded.

Anybody know what gives here?


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PostPosted: Fri Jan 20, 2012 8:17 pm 
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Joined: Thu Jun 14, 2007 9:49 am
Posts: 986
The upload is only possible when you saved the *.pro to the PLC (can be a Softplc)
You can compare the version in the PLC with the one compiled but it will be different.
Yes version control is very difficult.

_________________
shooter@home.nl
computer shooter
paul deelen
jacob van wassenaerstraat 29
NL 5224 GG 's-Hertogenbosch
skype shooter paul.deelen
phone +31736139136


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PostPosted: Sat Jan 21, 2012 6:23 am 
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Joined: Mon Jul 13, 2009 6:36 am
Posts: 7
Paul,

Thank you for the quick reply.

Could you elaborate on SoftPLC?

Thanks

Dutch


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PostPosted: Sat Jan 21, 2012 9:10 am 
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Joined: Thu Jun 14, 2007 9:49 am
Posts: 986
On any PLC you will only find a compiled version of the program, that is a machinelanguage with only bits and bytes, so a translation back to your written program is impossible.
thus also an upload is impossible, only the old systems like a PS3(moeller) was possible.
If needed more info just give me a call, i am living in shertogenbosch

_________________
shooter@home.nl
computer shooter
paul deelen
jacob van wassenaerstraat 29
NL 5224 GG 's-Hertogenbosch
skype shooter paul.deelen
phone +31736139136


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