Darra 

Commercial EtherCAT master protocol stack with real-time kernel driver integration, Windows and Linux support, multi-language SDKs, complex topology and hot-plug support.

Darra OPC UA Client SDK — 完全免费的 OPC UA 客户端开发库. 六语言对齐 (C#/Java/Python/C++/Rust/C), 完整 Service 集 (Discovery/Read/Write/Browse/Subscribe/Method/History/Events), 支持 Basic256Sha256 加密. 内置原生 Darra.OpcUa.Core.dll. The... More information