OPC UA Client SDK .NET Structure

Client Development SDK for OPC UA

If your application requires access to the OPC technology you have to decide which of the OPC Specifications you want to support. The decision depends on many factors like the used OPC specifications supported by third party products or the system architecture you want to use. Technosoftware GmbH is specialized in software consulting and development services for technical and industrial applications based on OPC and the founder of Technosoftware GmbH was involved in the design and development of many software products with OPC connectivity with more then 22 years extensive knowledge about OPC.

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.

We are releasing soon the OPC UA Client SDK .NET Standard which is targeting .NET Standard allowing you to develop applications that run on all common platforms, including Linux, iOS, Android (via Xamarin) and Windows 7/8.1/10 (including embedded/IoT editions) without requiring platform-specific modifications.

We recommend considering designing your application to use the OPC Unified Architecture in the first place by using our new OPC UA Client SDK .NET toolkit which allows development of client applications supporting OPC UA and through the

also the Classic OPC specifications DA, AE and HDA.

The OPC UA Client SDK .NET offers a fast and easy access to the OPC UA Client technology. Develop OPC compliant UA Clients with C#/VB.NET for the .NET 4.6.1 / .NET 4.7.1 frameworks.

The OPC UA Client SDK .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.

The separately available

extends the OPC UA Client SDK .NET with an OPC DA/AE/HDA server wrapper. Because of the functionality of the use Classic OPC Server access is limited to the DA, AE and the HDA features of the Classic OPC server.


Evaluation Developer Ultimate
   OPC UA 1.01 / UA 1.02 / UA 1.03
OPC UA Client SDK .NET Features
   .NET 4.7.1
   .NET 4.6.1
OPC UA Client SDK .NET Standard Features

   Upgrade in product purchase included (Support Subscription required)
   .NET 4.6.1
   .NET Standard 2.0

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


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

Order via Share-It

OPC UA Client SDK .NET Developer Edition without Support
OPC UA Client SDK .NET Ultimate Edition without Support

Order via Technosoftware

OPC UA Client SDK .NET without Support

1,495.002,495.00Select options

OPC UA Client SDK .NET with Support

From: 200.00 for 3 months and a 1,495.00 sign-up feeSelect options