Software Toolbox Technical Blog

OPC Data Client 2022.1 .NET 6, Win1021H2 Support, New Examples & More

6 min read

By Ganesh Kalipershad on Mar 31, 2022 2:00:00 PM


Following on the recent OPC Data Client 2021.3 release a few months ago, the OPC Data Client toolkit has been updated again to give developers more options, help them deal with Microsoft technology changes, and add new functionality to their applications. We will cover the highlights here in this technically deep blog post.

Be sure to read about the DCOM hardening that Microsoft is performing and options to be ready, to get ahead of potential support calls from your users.

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OPC Data Client 2021.3 - Windows 11, Server 2022, Examples & More

6 min read

By Ganesh Kalipershad on Nov 18, 2021 2:00:00 PM


Following on the recent OPC Data Client 2021.2 release a few months ago, the OPC Data Client toolkit has been updated again to further extend it's OPC UA client functionality. 

The new updates provide developers of custom OPC client applications with new operating system support, even more examples including Powershell examples, and a large number of improvements to all the supported OPC interfaces to increase flexibility, troubleshooting, and user experience, while further decreasing development time. 

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OPC Data Client 2021.2 - OPC UA Functionality Extensions

7 min read

By Ganesh Kalipershad on Jun 17, 2021 2:00:00 PM


Following on the recent OPC Data Client 2021.1 release a few months ago, the OPC Data Client toolkit has been updated again to further extend it's OPC UA client functionality. 

The new updates provide developers of custom OPC client applications new options to interact with even more OPC UA servers or more richly with existing OPC UA servers. This blog post teaches you how OPC UA PubSub security is different from regular OPC UA security, how to improve JSON/OPC UA PubSub interoperability with a new utility, and why you might care about OPC UA File Transfer. 

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OPC Data Client 2021.1 - Developer Productivity, .NET 5 Support & More

6 min read

By Ganesh Kalipershad on Mar 25, 2021 2:00:00 PM


Developers of custom OPC client applications have new options, enhanced troubleshooting tools, runtime configuration flexibility, and improved utilities to help them in the recently released 2021.1 (5.60) version of the OPC Data Client Toolkit.

In this technically hot blog post, we will cover the release highlights with links to documentation, and, as always, the full detailed release notes are available in our knowledge base. Also if you did not see the 2020.3 (5.59) release post, that one was packed with technical details.

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Virtual Training: Adding OPC UA to Your Custom OPC DA Server

2 min read

By Ganesh Kalipershad on Feb 11, 2021 2:00:00 PM

With OPC DA Classic having been the de-facto standard for integrating industrial automation systems for so many years, I'm sure there are quite a few of you who might have custom developed OPC DA servers using SLIK-DA. Now, of course, migrations to OPC UA are on the rise with its enhanced security, encryption and efficiency.

Of course, the prospect of replacing that OPC DA server entirely with a replacement that supports OPC UA might be less than ideal. But have you considered adding an OPC UA server interface to that existing OPC DA custom application?

In this video blog, we teach you how to add an OPC UA Server interface to your existing OPC DA Server interface using the SLIK-DA/UA rapid development toolkit with your custom software application (NO ADDITIONAL CODE). If you missed our last post on how to add an OPC DA interface to your custom software, click here.

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Virtual Training: Making your Custom Software an OPC DA Server

2 min read

By Ganesh Kalipershad on Jan 28, 2021 2:00:00 PM

So your organization has a custom developed application that is performing some important task and you've been tasked with providing access to that software for an OPC DA client or clients. Adding an OPC DA server interface to a custom application that either you've developed or that you've taken over from someone else can be a daunting task.  This is especially true if you're unfamiliar with the low level nuts and bolts of the OPC DA Classic specification.

In this video blog, we teach you how to add an OPC DA Server interface to your custom software application using the SLIK-DA/UA rapid development toolkit.

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OPC UA PubSub, OPC Classic Updates+More in OPC Data Client 2020.3

8 min read

By Ganesh Kalipershad on Jan 7, 2021 2:00:00 PM


With the recently released 2020.3 (5.59) version of the OPC Data Client Toolkit, developers of OPC Classic client applications can now use .NET Core and have more flexibility in managing optimizations in their applications. Developers using OPC UA PubSub have more methods and options to aid in their development.  More example programs will help new users get started faster or existing developers leverage other functionality in their applications.

In this technically hot blog post, we will cover the release highlights with links to documentation, and, as always, the full detailed release notes are available in our knowledge base.

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How to Develop Custom OPC Clients with Minimal Code

3 min read

By Ganesh Kalipershad on Aug 13, 2020 2:00:00 PM

As we discussed in the first post of this series, the term "OPC client" often refers to off-the-shelf HMI or SCADA applications.  OPC clients can also be other custom developed software applications in your enterprise that could benefit from access to OPC process data.  Or there might be a new custom application you need to develop that requires access to OPC process data.  In those situations, you need a reliable, straightforward method to enable those applications as OPC clients.

In Part 2 of our series on How to Develop Custom OPC Clients, we will cover step-by-step how to use low-code techniques to read, write and subscribe to OPC process data through building a basic OPC client application in Visual Studio.NET.

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