Member: OPC Labs
Product website: www.opclabs.com/products/picoopc
PicoOPC is a smallest imaginable OPC Unified Architecture (OPC UA) client library. It works with any .NET Standard conformant runtime. PicoOPC does not depend on any OPC UA stack. With PicoOPC, you can create and close sessions (opc.tcp), and perform reads and writes, synchronously or asynchronously. There is no support for security, browsing or subscriptions.
PicoOPC for .NET is available as NuGet package.