OPC UA: Open Platform Communications Unified Architecture
OPC UA (IEC 62541) is a standard overseeing interoperability and data exchange for industrial communications.
It provides safe and secure means to connect supervision systems (SCADA), programmable logic controller (PLC), with actuators and field systems.
Key features of OPC UA
- International standard (IEC 62541)
- Open and vendor-neutral: independent of manufacturers, programming languages, and operating systems
- Secure and reliable: secure communications on open networks
- Interoperable, multi-platform, upgradeable
- Model Based, object-oriented technology
- Pub/Sub communication model