OPC UA
OPC UA — Speedgoat driver blocks for OPC UA
Introduction
OPC UA is an Ethernet communication protocol based on a client-server
architecture. Every information in the server is represented by nodes of different
node classes like objects, variables and methods. Depending on the node class, the
node has different attributes such as name, value and unit. Nodes can be derived
from other node definitions, they can have references to one another and they are
part of a node tree whose structure is given by the information model used. Clients
connect to servers to read and write nodes, call methods, request historical data,
check alarms, or transfer a file. Speedgoat provides a native interface for OPC UA
which is supported with the onboard Ethernet interfaces and I/O modules. The OPC UA
protocol stack runs on the target machine's CPU. Simulink driver blocks for client
and server operation are available.