dataFEED OPC UA .NET Server & Client SDK for Windows

Easily enable your application with OPC UA

dataFEED OPC UA .NET SDK enables the fast integration of OPC UA into .NET applications for Windows. A comprehensive collection of libraries with a comfortable, clearly documented programming interface and associated sample applications are included and enable a fast time-to-market for the implementation of OPC UA functionality.

Please note:

For the dataFEED OPC UA .NET SDKs, Softing will only provide small bug fixes in the future. We therefore recommend using our dataFEED OPC UA .NET Standard SDKs, which are always updated by frequent updates.

OPC Competence Brochure

Download our free demo/ trial version now!


Complete Solution Addressing All Customer Requirements

  • Comprehensive set of building blocks offering encapsulation and easy-to-use functionality required for implementing OPC UA Clients and Servers for Windows environment
  • Modular design to scale OPC UA functionality according to actual requirements
  • Wide range of available functionality, including Extended Security, Data Access, Complex Data, Events, Alarms & Conditions and Historical Access
  • Integrated security concepts allowing safe remote data transfer actively addressing modern security threats
  • Applicable for time-critical control tasks as well as for complex automation projects
  • OPC UA Servers and Clients capable to move data and information between factory floor and enterprise level

Comprehensive Scope of Delivery for Easy and Fast Development

  • Optimized Application Programming Interface (API) and easy to understand documentation
  • Complimentary how-to example applications, step by step tutorials, complex test and simulation clients and servers for a lean getting started with OPC UA development

Investment Security Through Innovative License Model

  • Implementation according latest OPC UA specifications
  • Free migration to upcoming dataFEED OPC UA SDK versions thanks to SDK software and 3 years‘ right to updates to future versions

Technical Details

OPC SpecificationsOPC Unified Architecture V1.03
OPC RolesOPC UA Client, OPC UA Server
OPC UA Client/ Server ProfilesCore Characteristics, Data Access, Complex Data, Base Eventing, Methods, Audit, Node Management, Historical Access, Alarms and Conditions, Redundancy
OPC UA TransportOPC UA TCP transport; UA Binary Encoding SOAP/HTTP transport: UA Binary and XML encoding HTTPS transport; UA Binary and XML encoding
OPC UA SecuritySecurity policy: Basic256Sha256/Basic256/Basic128Rsa15/None
Authentication: anonymous/user name and password/user certificate 
Full compliance to OPC UA 1.03 specification
Programming InterfaceC#
Development Environment*Microsoft Visual Studio 2010, Microsoft Visual Studio 2012, Microsoft Visual Studio 2013, Microsoft Visual Studio 2015, Microsoft Visual Studio 2017, .NET Framework 4.0, .NET Framework 4.5, .NET Framework 4.6, .NET Framework 4.7
Development /Target
Operating Systems*
Windows 7 (32 Bit und 64 Bit), Windows 10 (32 Bit und 64 Bit),
Windows Server 2012, Windows Server 2016
Compliance/CertificationRegularly tested at OPC Foundation interoperability workshops, test with OPC Foundation compliance test tool
Support ToolsComprehensive programming examples and tutorials, complex test and simulation OPC UA Server and Client applications, generic technology test and demonstration Client and Server tools
Trial VersionTrial toolkit assemblies contain complete functionality. Limitation to 90-minute runtime period applies. 
Trial version upgrades to unlimited functionality simply by using binary license activation key
LicensingTrial and evaluation license, single seat developer license (binary and source code version)
Applications integrating licensed toolkit libraries can be deployed in unlimited number of copies.

* Please contact the Softing sales representative for requests of different compilers or operating system variants.


Sales Model

Innovative Maintenance Contract

  • Optimized Application Programming Interface (API)
  • All Software Updates included
  • Support directly from our developers
  • No Royalty Fees
  • Available in Source Code and Binary
  • Unlimited runtime of the SDK past of Maintenance Contract