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

  • signing
  • encryption
  • 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.