OPC as OpenSource ?

Posted 26 Feb 2003 at 14:58 UTC by Lehrig Share This

Is there an OpenSource implementation of OPC ?

OPC (OLE for Process Control) now has a widespread use in industry. Originally it has been developed with support from microsoft. But now it is also available on Unix/Linux. See: http://www.technosoftware.com/index.html or http://www.nautsilus.ru/engl/nlinux-lste.htm But as far as I can see, there is no OpenSource implementation. I think: If it is possible to have an OpenSource Corba implementation, it should also be possible to have an OpenSource OPC implementation. OPC becomes more and more critical to industrial process automation. OpenSource should have an answer to this.


PB as CommercialSoftware?, posted 27 Feb 2003 at 20:12 UTC by glyph » (Master)

Is there a CommercialSoftware implementation of PB?

PB (Perspective Broker) now has a widespread use in industry. Originally it has been developed with support for Linux, but it is also available on Windows. But as far as I can see, there is no commercial implementation. I think: if it is possible to have a commerical DCOM implementation, it should also be possible to have a commercial PB implementation. PB becomes more and more critical to client/server simulations. CommercialSoftware should have an answer to this.

For the humor impaired: why is it that some people here seem to think that the Open Source community must provide an answer to every inane standard that Microsoft and pals feels compelled to thrust upon the world? Some of them are just useless, and so nobody cares. If you think it's so important, go do it yourself. That's the whole point here; you give away code for free. Commercial entities often don't respond to good open source technologies, or even standards bodies they themselves participate in. If you want the code written, pay for it.

(By the way: chances are the open source community does support your absurd standard of choice. A brief google search for "Open Source OPC" came up with this, which appears to be "an open source OPC server toolkit". Advogato is not your personal web query service. Do your homework first.)

Hardware manufacturers are defining the Standard, not Microsoft, posted 28 Feb 2003 at 08:11 UTC by Lehrig » (Apprentice)

I have seen your link even before I posted the first time. But unfortunately that project will only work on a Windows platform. There are also 2 commercial implementations of OPC that also work on Linux/Unix. One from Russia and one from Switzerland (which uses wine).
In process automation you have to connect a lot of devices. For doing this, a lot of proprietary protocols have been developed. OPC is now an open protocol (defacto: standard). But unfortunately it is closely related to Microsofts DCOM.
Defacto: OPC ist a must have in process automation, because all relevant Hardware providers are using it.
I think the OpenSource community should take this into account.

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