Sample projects for C#, VB.NET and C++/CLI to guide developers using our OPC UA .NET SDKs.
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Updated
Jul 24, 2026 - C#
Sample projects for C#, VB.NET and C++/CLI to guide developers using our OPC UA .NET SDKs.
List of commercial and open source OPC UA Clients
modbusua is a cross‑platform (Windows, Linux) gateway that bridges data between the Modbus and OPC UA
OPC-UA Ruby Bindings (open62541)
A simple OPC UA Server build with Node-OPCUA stack for Node.js
rOpen62541 is an open-source library wrapper for the industrial open62541 OPC UA protocol stack, specifically optimized for the ESP32-S3 Dual-Core architecture.
A web-based render viewer of an OPC UA CTT test run
Ready-to-use OPC UA suite built specifically for integration testing of OPC UA client libraries. Built on the OPC Foundation UA-.NETStandard library (.NET 10.0), it provides 10 pre-configured server instances covering every major security policy (RSA and ECC), authentication method, and communication mode defined by the OPC UA specification.
Teacup client/server OPC UA support
Quick-start examples for integrating PLCcom OPC UA SDK, a .NET SDK for easy and efficient OPC UA client communication.
Distribute ambient IoT sensor data from Pareto Anywhere open source middleware via an OPC-UA server. We believe in an open Internet of Things.
Control a 3D-printable 5-axis robotic arm and conveyor system via OPC UA with Python on Raspberry Pi. Includes full CAD, circuitry, and server code. The servers can be tested on opcua_fusion aggregator application:
A comprehensive, ready-to-use OPC UA server suite built specifically for integration testing of OPC UA client libraries. It provides 8 pre-configured server instances covering every major security policy, authentication method, and communication mode defined by the OPC UA specification.
A Step-by-Step guide to help provide first-time setup and testing of a TF6100 OPC-UA Server to test the validty of the OPC-UA connection before moving onto a security setup.
Quick-start workshop examples for the PLCcom OPC UA SDK (Java) — Client and Server workshops covering Data Access, Alarms, Historical Data, Events, NodeSet Import, Logging and Reverse Connect.
OPC Wizard is a suite of OPC Server development components for .NET. Supports the OPC Unified Architecture (Client-Server) specification.
OPC UA server on Raspberry Pi Pico 2 W (open62541 + FreeRTOS)
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