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Technical support is provided through Support Forums below. Anybody can view them; you need to Register/Login to our site (see link in upper right corner) in order to Post questions. You do not have to be a licensed user.

OPC Labs team is actively monitoring the forums, and provides answers as soon as possible. For your convenience, we have also assembled a Frequently Asked Questions page.

Please do not use the Contact page for technical support.

HINT: You may use the Search feature (magnifier icon below) in the forums to locate the information you need. You can also search our entire Web site (the search box in the upper right corner of every page).
 
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Your search returned 336 result(s):
New Post
 Forum: QuickOPC-COM
 5/18/2012 4:29 AM  
OPC Labs Technical Support
6th Level Poster
Posts: 591
Title: Re: QUICKOPC.COM and VB6
 
Hello, we have set up a long-running test with following parameters: QuickOPC-COM 5.12.1305.1 queue sizes increased according to your picture client test application subscribing to 12,000 items each item changing on the server once in 10 minutes (in a phased manner), giving...
New Post
 Forum: QuickOPC.NET
 5/11/2012 2:58 AM  
OPC Labs Technical Support
6th Level Poster
Posts: 591
Title: Re: Access Denied Error Using VB.Net and Phoenix Contact
 
Hello; yes, this is quite weird. Obviously the error is coming from the security. Because the browsing works, the issue probably has to do with the "reverse" way of communication: In OPC Data Access, the OPC Server needs to make callbacks into the OPC Client - so it could be failing at the moment...
New Post
 Forum: QuickOPC-COM
 5/4/2012 5:39 AM  
OPC Labs Technical Support
6th Level Poster
Posts: 591
Title: Re: QUICKOPC.COM and VB6
 
Hello, we will investigate this. You might be right that the problem could be related to reconnections, but of course the expected behavior is that these should not caause a memory leak. Here is the plan: We will set up a system similar to yours (probably with lower number of items, and ...
New Post
 Forum: QuickOPC.NET
 3/16/2012 8:56 AM  
OPC Labs Technical Support
6th Level Poster
Posts: 591
Title: Re: C# app connecting to RSLinx
 
Hello, you should be able to do what you want by simply changing the server's ProgID in the client to the ProgID of the OPC Server (it could be "RSLinx OPC Server" but we do not have the full RSLinx Classic here so I cannot be sure) and changing the ItemID to one of the items provided by the ser...
New Post
 Forum: QuickOPC.NET
 3/16/2012 8:45 AM  
OPC Labs Technical Support
6th Level Poster
Posts: 591
Title: C# app connecting to RSLinx
 
Dear Sirs I have tried your sample OPC server in c# application to display a number in a form. I would like to test a conncetion to a Rockwell OPC(RSLinx Classic) server as a trial to test accessing tags from Rockwell in a live system. We are not in a position to purchase this product at ...
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