Recent changes
From OPC Labs Knowledge Base
Track the most recent changes to the wiki on this page.
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12 December 2025
| N 16:54 | OPC development in Visual FoxPro diffhist +2,908 User talk contribs (Created page with "Category:Visual FoxPro <div class="content-intro"> <h1 title="Develop OPC FoxPro solutions">Visual FoxPro</h1> <p>Are you having difficulties incorporating OPC data into your Visual FoxPro solution? Need to create an OPC FoxPro program quickly and in quality? If so, QuickOPC comes to the rescue. Fox programs can now connect to OPC servers with ease.</p> <p>QuickOPC is a set of components that simplify the task of integrating OPC client functionality into applica...") | ||||
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16:50 | Table of Contents 8 changes history +289 [User (8×)] | |||
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| N 16:44 | OPC with Trill diffhist +1,548 User talk contribs (Created page with "Category:Trill <div class="content-intro"> <h1 title="Develop OPC PowerBuilder solutions">Trill</h1> <p>Are you trying to incorporate OPC data into your Trill solution? If so, QuickOPC comes to the rescue. Trill can now connect to OPC servers with ease.</p> <p>QuickOPC is a set of components that simplify the task of integrating OPC client functionality into applications. Reading a value from OPC Data Access or OPC Unified Architecture (OPC UA) se...") | ||||
| N 16:38 | QuickOPC-COM in C/C++ diffhist +3,370 User talk contribs (Created page with "Category:C++ <div class="content-intro"> <h1 title="QuickOPC-COM in C/C++">OPC development in C and C++</h1> <p>QuickOPC will make it easy for you to integrate OPC client functionality into your solution developed in C or C++ language. Reading a value from OPC Data Access or OPC UA server, or writing a data value can be achieved in just a few lines of C or C++ code. You can also set up subscriptions and receive event notifications about data changes. OPC Alarms&...") | ||||
| N 16:24 | OPC development in PowerBuilder diffhist +2,994 User talk contribs (Created page with "Category:PowerBuilder Category:PowerScript <div class="content-intro"> <h1 title="Develop OPC PowerBuilder solutions">PowerBuilder</h1> <p>Are you having difficulties incorporating OPC data into your PowerBuilder solution? Need to create a OPC PowerScript program quickly and in quality? If so, QuickOPC> comes to the rescue. PowerBuilder programs can now connect to OPC servers with ease.</p> <p>QuickOPC is a set of components that simplify the task of integrating...") | ||||
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N 16:14 | OPC development in FSharp 2 changes history +4,083 [User (2×)] | |||
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16:13 (cur | prev) +4,088 User talk contribs (Created page with "Category:F-sharp <div class="content-intro"> <h1 title="QuickOPC in F#">OPC development in F#</h1> <p>QuickOPC makes it easy for you to integrate OPC client functionality into your Visual F# solution. Reading a value from OPC Data Access or OPC Unified Architecture server, or writing a data value can be achieved in just one or two lines of code. You can also set up subscriptions and receive event notifications about data changes. What's more, in your OPC F# program,...") | |||
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N 15:51 | StreamInsight Extensions for QuickOPC 2 changes history +4,633 [User (2×)] | |||
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15:49 (cur | prev) +4,983 User talk contribs (Created page with "Category:StreamInsight <div class="content-intro"> <h1 title="Develop OPC StreamInsight solutions">StreamInsight Extensions for QuickOPC</h1> <p>The StreamInsight Extensions for QuickOPC> allow you to bring in <i>streaming data</i> from OPC sources into StreamInsight, analyze them and process them further, and even feed the results back to OPC servers. With OPC StreamInsight, data from OPC can be combined with data from multiple other sources. You can monit...") | |||
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N 15:42 | Get OPC data into Perl 4 changes history +2,395 [User (4×)] | |||
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15:30 (cur | prev) +4,744 User talk contribs (Created page with "<div class="content-intro"> <h1 title="How to develop OPC Perl solutions">Get OPC data into Perl</h1> <p>With QuickOPC, you can create new OPC Perl solutions, or integrate OPC functionality into your Perl scripts.</p> <p><strong>How does QuickOPC allow integration of OPC data into Perl?</strong></p> <ul> <li>QuickOPC provides COM (OLE Automation) objects with easy interfaces to perform all kinds of OPC tasks</li> <li>You instantiate one of the main QuickOPC objects.</li>...") | |||
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N 15:31 | OPC with Microsoft SQL Server 4 changes history +2,417 [User (4×)] | |||
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15:12 (cur | prev) +2,457 User talk contribs (Created page with "<div class="content-intro"> <h1 title="Develop SQL OPC clients, and OPC-SQL solutions">OPC with Microsoft SQL Server</h1> <p>It is a common requirement in automation to store or retrieve data to or from SQL databases. QuickOPC makes it easy for you to create OPC SQL solutions, i.e. integrate OPC client functionality into your database solution with Microsoft SQL Server. Reading a value from OPC Data Access server, or writing a data value can be achieved in just several l...") | |||
11 December 2025
10 December 2025
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15:44 | Table of Contents 8 changes history +316 [User (8×)] | |||
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| N 15:43 | OPC Q&A diffhist +5,138 User talk contribs (Created page with "= Are subscriptions and asynchronous operations similar? = Both OPC subscription, and OPC asynchronous reads/writes require a callback from the OPC server to the OPC client. In this sense, they are quite similar, and a subscription can be considered a special case of the asynchronous OPC communication. The asynchronous read/writes, however, are "one-shot" transactions, initiated individually by the OPC client. The subscription is created inside the OPC server by the OP...") | ||||
| N 15:26 | About OPC Standards and Technologies diffhist +1,277 User talk contribs (Created page with "= What is OPC? = OPC is a [http://opcfoundation.org/about/what-is-opc/ worldwide standard] of application interface in industrial automation software and the enterprise systems that support industry. OPC standards are provided in form of various specifications. OPC standards and OPC technology can be used by anybody without any royalty charges to OPC Foundation. This page attempts to provide explanation of commonly used OPC terms. = What is an OPC Server? = OPC Server...") | ||||
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N 15:20 | Videos from OPCTI explaining what OPC is, how people are using it and why 3 changes history +445 [User (3×)] | |||
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15:18 (cur | prev) +31 User talk contribs (→Part 1: OPC Overview) | ||||
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15:17 (cur | prev) +320 User talk contribs (Created page with "What Is OPC? = Part 1: OPC Overview = Engineers, operations managers, technicians, automation professionals, IT personnel and other will benefit from this presentation as it explains what OPC is, how people are using it and why. = Part 2: OPC Case Study = = Part 3: OPC Specifications = = Part 4: OPC Compliance =") | |||
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N 15:11 | A (Partial) Story of OPC URLs 3 changes history +7,364 [User (3×)] | |||
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15:06 (cur | prev) +2,169 User talk contribs (Created page with "Have you ever seen something like this, when connecting to an OPC server? opcda://TEST-OPC/Kepware.KEPServerEX.V5/{B3AF0BF6-4C0C-4804-A122-6F3B160F4397} It looks like an URL. But, is it an URL? In this case, you might guess that it refers to an OPC Data Access server, and that the TEST-OPC is the name of the computer, "KEPServerEX.V5" is the OPC server's ProgID, and {B3AF0BF6-4C0C-4804-A122-6F3B160F4397} is its CLSID. For OPC "Classic" servers, the OPC specification...") | |||
| 15:06 | Upload log User talk contribs uploaded File:Softing-demo-client-url.png | ||||
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N 15:01 | Automated Testing of OPC Clients using the CTT 2 changes history +2,784 [User (2×)] | |||
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14:53 (cur | prev) +2,863 User talk contribs (Created page with "(Published: 07 January 2014; Updated: 31 July 2016) For long time, we have been performing automated tests of our OPC client libraries. This is basically a combination of unit tests and integration tests, and we have developed these tests along with the products themselves. This year (2013), however, we have been been going through the OPC compliance certification procedures for OPC Unified Architecture (OPC-UA) with our QuickOPC product, and a new area of tests has em...") | |||
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N 14:48 | OPC Glossary 3 changes history +13,749 [User (3×)] | |||
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14:13 (cur | prev) +13,600 User talk contribs (Created page with "; Access Rights : Access rights allowed to a given item. Can be Read only, Write only, or Read/Write. ; Asynchronous : Various OPC calls explicitly make use of asynchronous communication. When an OPC Client application issues an asynchronous call, the OPC Server acknowledges receipt of the call itself. The OPC Server then “calls” the OPC Client application back with the result using a callback. The OPC Client application does not know when it will receive the callba...") | |||
| N 14:07 | QuickOPC Videos From Software Toolbox diffhist +1,546 User talk contribs (Created page with "[https://www.softwaretoolbox.com Software Toolbox], our U.S. reseller, has created multiple videos about QuickOPC (in the videos. QuickOPC is referred to as "OPC Data Client" or "OPCData.NET"). == Live Binding videos: == * [http://ftp.softwaretoolbox.com/videos/datanet/SubscribeTag.mp4 How to Subscribe to A Tag]. How do I use the Data.NET's live binding feature to subscribe to a single tag? * [http://ftp.softwaretoolbox.com/videos/datanet/SubscribeMultiple.mp4 How to Su...") | ||||
| N 13:43 | Why You Shouldn't Write Low-Level OPC Code Yourself diffhist +2,638 User talk contribs (Created page with "This article has been inspired by an e-mail conversation we have recently had with a customer. He had written a piece of code "from the scratch" that connected to his OPC Data Access server, and was able to obtain the data he needed to store in a database. He therefore had doubts about the value and usefulness of a library such as QuickOPC; it appeared to him that the task of writing an OPC client is quite easy. During the course of a discussion, we have identified quit...") | ||||
| 13:37 | 5 Steps for DCOM Configuration, from OPCTI diffhist +22 User talk contribs | ||||
