advantages OPC UA
The OPC Unified Architecture is an operating System independent standard for communication of different client – server systems via different network typ.
Safe and robust connection due to
- user authentication
- detection of transmission errors
- esending of lost messages
Self-description of the server
- transfer of the node structure
- Transmission of semant
The specifications of security mechanisms in the protocol ensure secure, robust and authenticated message transmission between client and server systems. The specification of a new address space, which contains not only data but also its semantics and description, created a connection from the process level (controllers, plant level) up to management systems.