Talk:Open Platform Communications

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I don't find the article to be very clear. After reading, I am still not sure what OPC does. Some examples and pictures/diagrams would be useful — Preceding unsigned comment added by 64.125.71.178 (talk) 14:23, 15 October 2013 (UTC)Reply

I have a little bit confusion in " what is the main difference between the OPC and DDE comunication"? Can any one help me?

For reference you can contact me at "[email protected]".

DDE use clipboard to store data temporarily and retrives on particular interval while OPC is used for realtime processes like handshaking for any query contact me [email protected]

In computing, Dynamic Data Exchange (DDE) is a technology for interprocess communication used in early versions of Microsoft Windows and OS/2. DDE allows programs to manipulate objects provided by other programs, and respond to user actions affecting those objects. DDE was partially superseded by Object Linking and Embedding (OLE), and is currently maintained in Windows systems only for the sake of backward compatibility.

OPC was originally based on OLE, COM, and DCOM, so a different technology stack.

DDE does not rely on the clipboard.

CaliViking (talk) 22:06, 15 July 2025 (UTC)Reply

Hasn't the official meaning of OPC changed to Open Process Collaboration?

That is what Nathan Pocock claimed in the software developer radio show ".NET Rocks" on 2008-08-07 (it is also stated on the associated web page - see the last link below),

 10 m 40 s  -  11 m 50 s:

 MP3 (42 MB):
   <http://feeds.feedburner.com/~r/netRocksFullMp3Downloads/~5/329570652/dotnetrocks_0357_nathan_pocock.mp3>
     (Short: <http://shrinkster.com/1170>.)

 Home page for the OPC episode:
   <http://www.dotnetrocks.com/default.aspx?showNum=357>

Mortense (talk) 00:10, 14 August 2008 (UTC)Reply

Does anybody know an OPC based SCADA software which can work on both Windows and Linux? —Preceding unsigned comment added by 203.99.182.77 (talk) 10:43, 30 October 2010 (UTC)Reply

The references to opcfoundation.org don't seem to exist anymore. These need some updating — Preceding unsigned comment added by 80.254.148.67 (talk) 09:29, 10 March 2015 (UTC)Reply

Well I guess the name of the article is completely wrong. The Source given for the reason of the name "Open Platform Communications" shows a text, where this name is not mentioned once [1]. So it is completely incorrect. The OPC Foundation still doesn't have full name for OPC. It seems to be just three letters with a historical meaning and that's it. --Neto-Zeme (talk)

--- Edit ---

For now they changed it in the source to the name mentioned here. So now this is finally correct. — Preceding unsigned comment added by Neto-Zeme (talk • contribs) 10:47, 6 July 2017 (UTC)Reply