OPC UA Client Development

OPC UA Client Development
OPC UA Client Development

Based on .NET Standard you can easily develop applications supporting OPC UA as a client. Our base solution supports C#/VB.NET targeting .NET 4.6.2, .NET Standard 2.1.

.NET Standard allows you develop applications that run on all common platforms available today, including Linux, iOS, Android (via Xamarin) and Windows 8.1/10 (including embedded/IoT editions) without requiring platform-specific modifications.

The OPC Unified Architecture (UA) is THE next generation OPC standard that provides a cohesive, secure and reliable cross platform framework for access to real time and historical data and events.

It’s Time to Adapt this specification for use in your applications and we recommend considering designing your application to use the OPC Unified Architecture.

The OPC UA Client .NET API defines classes which can be used to implement an OPC client capable to access OPC servers supporting different profiles with the same API. These classes manage client side state information; provide higher level abstractions for OPC tasks such as managing sessions and subscriptions or saving and restoring connection information for later use.

System Requirements

Client Source
OPC UA 1.00 / 1.01 / 1.02 / 1.03 / 1.04
.NET Framework
.NET 4.8
.NET 4.7.2
.NET 4.6.2
Visual Studio 2019
.NET 5.0
.NET Standard
.NET Standard 2.1
.NET Core 3.1
Mono 5.4
Xamarin.iOS 10.14
Xamarin.Mac 3.8
Xamarin.Android 8.0
Universal Windows Platform 10.0.16299
Unity 2018.1
Visual Studio 2019

The detailed license agreement with a comparison of the different editions is available here.


The OPC UA Client .NET Standard is available with the following options:

Order via Technosoftware

OPC UA Client .NET Standard

2,995.00Select options


We also offer a bundle combining client and server functionality in one package:

OPC UA Bundle .NET Standard

5,995.0011,995.00Select options


In addition you can subscribe for an OPC UA Support Subscription:

OPC UA Support Subscription
You are entitled for 4 hour development work or remote training session per month.

From: 1,000.00 / monthSelect options