An open source OPC DA Client SDK/ToolKit written in C++, support both 32 bit and 64 bit.

Opc Sample

An OPC DA client written purely in Go

OPC Data Access .NET Client Library

This is a tutorial of the DCS system and data collecting from the OPC server.

opc browser

opcda ,opcua ,

Opc DataAccess libary for .NET.

OPC client and subscriber code examples using QuickOPC in Object Pascal (Delphi) for OPC Data Access (OPC DA) and OPC Unified Architecture (OPC UA), including OPC UA PubSub.

OPC client, server and subscriber code examples in C#, for OPC Data Access (OPC DA) and OPC Unified Architecture (OPC UA), including OPC UA PubSub.

OPC DA and OPC HDA library based on the work openscada and j-interop.

OPC Client code which is intended for python.

OPC client made simpler, for UA and DA, fork for netstandard2.0

OPC client and subscriber code examples using QuickOPC in VB6 for OPC Data Access (OPC DA) and OPC Unified Architecture (OPC UA), including OPC UA PubSub.

OPC client and subscriber code examples using QuickOPC in PowerShell for OPC Data Access (OPC DA) and OPC Unified Architecture (OPC UA), including OPC UA PubSub.

OPC to ODBC server

Opcda Java. Feel free to open an issue if you have any questions or feature requests.

OPC DA client for KEBA PLC developed in C#

🔗 Simplify OPC client development with QuickOPC, a versatile suite for .NET, COM, and Python, supporting Classic, XML-DA, and Unified Architecture standards.

QuickOPC is a suite of OPC Client/Subscriber development components for .NET, COM and Python. Supports OPC Unified Architecture (including OPC UA PubSub), OPC "Classic" (COM/DCOM-based) and OPC XML-DA specifications.