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Featured Product: QuickOPC

 

With QuickOPC, you can forget pages of complicated code and get results with a few lines of code using a programming tool and language of your choice. Benefits...

 

The simple code below (in C# language) reads and displays an item value, using QuickOPC in .NET:

// Read item value and display it in a message box 
MessageBox.Show(EasyDAClient.SharedInstance.ReadItemValue(
    "", "OPCLabs.KitServer.2", "Demo.Single").ToString());

The code below subscribes to changes of an item, and displays the value with each change:

// The callback is a lambda expression that displays the value 
EasyDAClient.SharedInstance.SubscribeItem(
    "", "OPCLabs.KitServer.2", "Demo.Single", 1000,
    (_, args) => Console.WriteLine(args.Vtq.Value));

No other product can do this in such a clear and concise code, in a single statement! The programming is straightforward, and the developer can focus on getting the work done and not on fighting the intricacies of OPC protocols.

The same code simplicity is maintained in other programming languages. Click the link to explore the corresponding examples in Visual Basic (VB.NET).

 

OPC Certification

CertificationLogo-Certified-Small-Compressed-ProgressiveQuickOPC (by the means of its Connectivity Explorer application) is certified for compliance by OPC Foundation Certification Testing Laboratory. For OPC Unified Architecture, it is the first product of its kind (.NET-based client toolkit) that has been awarded this certification.

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Contains topics of interest that relate to support forums, including *** RULES FOR FORUM POSTS ***.
Re: Rules for forum posts
by support
22 Nov 2019 15:13

Discussions 2109 topics

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OPC Wizard 5 topics

Provide support for the OPC Wizard (rapid OPC UA server development).
Please post your suggestions and wishes here, for all our products.
Develop Sparkplug host applications and edge nodes.

Sparkplug is a trademark of Eclipse Foundation, Inc.
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Tools 17 topics

Tool applications that ship with our products or separately.

Excel Connector 15 topics

With the Excel Connector, you can set up a communication link between Excel and any OPC server. It is possible to subscribe to and view real-time data, and also write the data back.

OPC Classic, OPC XML and OPC UA servers are supported. No programming, macros or add-ins are necessary.

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Provides support for PicoOPC minimalistic OPC library.
Provides support for QuickOPC-Classic in .NET-based tools. This category is meant for OPC "Classic" (COM/DCOM based) specifications - currently, OPC-DA and OPC-A&E are supported.
Provides support for QuickOPC-Classic in COM-based tools. This category is meant for OPC "Classic" (COM/DCOM based) specifications - currently, OPC-DA and OPC-A&E are supported.

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Re: QuickOPC API License
by support
03 Nov 2025 09:45

QuickOPC-UA in COM 208 topics

Provides support for QuickOPC-UA (for OPC Unified Architecture) in COM-based tools.
OPC client and subscriber development in Python with QuickOPC toolkit.

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