July 12, 2021 | Daywey Chen
OPC-UA has integrated the OPC-DA, OPC-A&E and OPC-HDA communicated protocol together. To integrate the capability for data access, alarm & event, and historical data access. Together, formulating an OPC-UA structure. OPC-UA allows for more efficient and effective communication between machines, within the individual machines, between machines and people, between machines and other application systems. In this article, let’s look into the attributes, composition, and communication methods of OPC-UA.