I want to develop an OPC server using LightOPC, stumbled upon standard files problem. It requires OPC DA Specifications provided by OPC Foundation.

Unfortunately the files are not available for download for non-members, and I can't be a member, because I don't have the money to pay for it.

Is there any way/or any other free sources for these files?

 

Unfortunately, as Curt is probably going to point out, too, the OPC foundation has an NDA associated with it. It's really a club, not a standards body.
--
Michael R. Batchelor

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Actually I don't need to. Trying to get what you would need is an object lesson in why that's a bad idea. It's a long way from Open and a far cry from OSS. But to some people, there is no computing but from the monopoly and it's at present, vigorously enforced by Big Automation. An examination of why is another object lesson.
They frantically avoid any other commonality, but they all bow to Redmond. One ring to rule them all....And in the darkness bind them.

(With apologies to Tolkien).

Regards
cww

 

Try downloading a few trial OPC clients/servers from vendors like Matrikon, Softing etc. - some of them come with specification.

 

I have an experience with LightOPC. See http://www.retcode.com. This tool I have made by using LightOPC.

 

I'm using LightOPC succesfully, and I'm not an OPC member. I can help you if you are still interested.

Good luck!

Francisco

 

if you only need the headers, you can send me mail: myopc. hi @ gmail. com

 

Hello Mr. Francisco,

You said that you are progressive user of LightOPC.
I'm a beginner in this field and I need your help.
Can you provide me with instruction of using this product, or at least tell me what are my first steps?

[email protected]
best regards.
SAM

 

I'm just starting to use LightOPC and I feel lost. I haven't find the headers of the specifications. Well, I just find error.h. but I need some help with the use of the server.

Can anyone help me?

Thanks in advance,
Alejandra

 

Go to http://www.opcfoundation.org. They have all the answers. You can also get answers at http://www.matrikon.com

There are a number of white papers and articles on OPC on the http://www.controlglobal.com website.

Walt Boyes
Editor in Chief
Control magazine
www.controlglobal.com
blog:Sound OFF!! http://www.controlglobal.com/soundoff
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