OPC UNIFIED ARCHITECTURE:
OPC Unified Architecture (UA) is a platform independent standard through which various kinds of systems and devices can communicate by sending Messages between Clients and Servers over various types of networks.
OPC UA (Unified Architecture) expands the great success of the OPC communication protocol for data acquisition, information design, and communications between plant and applications in a reliable and secure way.
Main Characteristics and OPC UA benefits are:
-Neutral platform that operates in any operative system
-Prepared for the future and to communicate with legacy equipment
-Easy configuration and maintenance
-Technology aimed to services
-Greater connectivity reach
-Internet and Firewall access