OPC UA (Unified Architecture) was specified by the OPC Foundation
and combines the previous technologies OPC Classic DA, AE and HD. It paves the way for industry 4.0 and Internet of Things (IoT).
The use of Microsoft DCOM is dispensed with. Instead, a service-oriented protocol based on TCP/IP is used for secure communication,
e.g. on the internet, thanks to encryption and user authentication, also across firewalls.
For the first time, numerous Linux implementations and on-chip solutions are available
in addition to implementations for Microsoft Windows®. That is why OPC UA is applicable from sensor to cloud.
UA TCP, UA Secure Conversation
TCP (RFC 793)
IP (RFC 791)
MAC (IEEE 802.3)
Ethernet (IEEE 802.3)
Available Protocol Stacks
OPC UA 1.02, Client
OPC UA 1.02, Server
Windows software package for universal conversion between diverse standard protocols