The OPC UA Client .NET offers a fast and easy access to the OPC Unified Architecture (UA) technology. Develop OPC UA compliant Clients with C# targeting .NET 8.0, .NET 7.0 or .NET 6.0. For backward compatibility we also provide .NET 4.8 support.
.NET 8.0, .NET 7.0 or .NET 6.0 allows you develop applications that run on all common platforms available today, including Linux, macOS and Windows 8.1/10/11 (including embedded/IoT editions) without requiring platform-specific modifications.
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.
Document Control
| Version | Date | Comment |
|---|---|---|
| 3.1 | 28-APR-2023 | Initial version based on version 3.1 |
| 3.3 | 02-FEB-2024 | Updated to new sample client |
Purpose and audience of document
Microsoft’s .NET is an application development environment that supports multiple languages and provides a large set of standard programming APIs. This document defines an Application Programming Interface (API) for OPC UA Client development based on the .NET programming model.
This document gives a short overview of the functionality of the OPC UA .NET solutions family. The goal of this document is to give an introduction and can be used as base for your own implementations.
Referenced OPC Documents
| Documents |
|---|
| Online versions of OPC UA specifications and information models. The OPC UA Online Reference is available at: https://reference.opcfoundation.org |
| OPC Unified Architecture Textbook, written by Wolfgang Mahnke, Stefan-Helmut Leitner and Matthias Damm: http://www.amazon.com/OPC-Unified-Architecture-Wolfgang-Mahnke/dp/3540688986/ref=sr_1_1?ie=UTF8&s=books&qid=1209506074&sr=8-1 |