What Is OPC UA?
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The Founder's Explanation (Teach Exactly This Way)
"Imagine one language that any machine, from any company, on any computer, can speak — and speak safely. For years the industry wanted this. OPC UA is that language. Not just carrying a number, but carrying the number with its name, its unit, its meaning — and locked, so nobody can listen or change it in between."Teaching the Concept
A Universal Language for Machines For years, machines from different makers could not talk without custom glue. The dream was one common language that any machine, on any computer, could speak — safely. OPC UA is that language, and it now reaches from the factory floor into buildings. It does not just carry a number; it carries the number with its meaning, securely. What Makes It Different ``` PLATFORM-INDEPENDENT runs on any OS, no DCOM SECURE certificates, signing, encryption MODELLED self-describing information model SERVICE-ORIENTED client-server and pub/sub ``` Where It Fits ``` Factory / process data (OT) \ >- OPC UA -> IT / cloud / MES Building systems (BMS) / one secure, modelled language across worlds ``` OPC UA is a secure, self-describing common language — the bridge where industrial and building systems meet.Related Topics
- What is OPC UA in BMS and when is it needed? — when to reach for OPC UA
- What is a protocol in BMS? — the shared language controllers use to talk
- Browse all Protocols topics — more from this section of the EnSmart BMS Library
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