Data value changes An OPC UA node is exposing a value reflecting a measurement of a sensor. If the value of the sensor changes, the OPC UA node value changes. This tutorial refers to it as data value ...

OPC UA PubSub is an extension to OPC UA that enables communication between OPC UA applications using a Publish-Subscribe message pattern instead of the Request-Response message pattern. The ...

OPC interfaces today provide easy to use, high-performance connectivity between automation components, control hardware and field devices, thus bridging the divide between heterogeneous automation ...

Matrikon, an OPC Foundation Charter Member, has produced a 30-minute online multimedia tutorial to explain the basics and vision of OPC and how to begin integrating it into new and current systems.

OPC UA's scalable security concept. OPC UA has been widely touted as a secure industrial communications technology for Industrial Internet of Things (IIoT) and Industrie 4.0 applications. In fact, ...

OPC UA is a framework for industrial interoperability based on data models that provide a syntactical definition of information that can be communicated with virtually any communication methods, ...

OPC UA including APL, TSN, and 5G for the field: The Field Level Communications initiative reaches a major milestone. Figure 1. FLC initiative developing extensions to the OPC UA framework for field ...

Welcome to the August 2009 edition of OPConnect, the official newsletter of the OPC Foundation. There have been a lot of things happening in 2009, and it’s been very exciting with respect to OPC ...