OPC UA

Would you please let me know more about OPC Unified Architecture (UA) software so that I can remember easily?

Feel free I will let you know about OPC Unified Architecture (UA) software so that you can remember easily.

The OPC Unified Architecture (UA) is a platform independent service-oriented architecture that integrates all the functionality of the individual OPC Classic specifications into one extensible framework

Features
Functional equivalence: all COM OPC Classic specifications are mapped to UA

Platform independence: from an embedded micro-controller to cloud-based infrastructure

Secure: encryption, authentication, and auditing

Extensible: ability to add new features without affecting existing applications

Comprehensive information modeling: for defining complex information

Drawbacks:
Frequent configuration issues with DCOM;
No configurable time-outs;
Microsoft Windows only;
Lower security;
No control over DCOM (COM/DCOM is kind of a black box, developers have no access to sources and therefore have to deal with bugs or insufficient implementations).


Specifications
The OPC UA specification is a multi-part specification and consists of the following parts:
Concepts
Security Model
Address Space Model
Services
Information Model
Mappings
Profiles
Data Access
Alarms and Conditions
Programs
Historical Access
Discovery
Aggregates

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Answered By StudyChaCha Member