https://wiki.aeicor.com/ 2026-10-17T00:48:26+00:00 https://wiki.aeicor.com/ https://wiki.aeicor.com/_media/logo.png text/html 2026-07-30T23:36:27+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/technology/industry40/opcua/start?rev=1785454587&do=diff OPC UA: an Industry 4.0 information framework OPC UA (IEC 62541) is a platform-independent industrial interoperability framework. Its real subject is how data is described, not merely how it moves: a typed address space, a security model, and companion specifications that give an industry a shared vocabulary for its machines. That description layer, not the transport, is what makes a machine's data usable by an MES, a SCADA system or a third-party integrator. AEI Corporation implements OPC UA s… text/html 2026-07-30T23:36:27+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/technology/industry40/opcua/stack-comparison/start?rev=1785454587&do=diff Open-source OPC UA stacks compared: open62541 vs S2OPC (embedded focus) Two open-source OPC UA server stacks dominate serious embedded use: open62541 (C, MPL-2.0) and S2OPC (C, Apache-2.0, Systerel). They are not interchangeable: open62541 leads on features and ecosystem (full PubSub including subscriber and TSN reference work, released ECC security policies, companion- text/html 2026-07-30T23:36:26+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/technology/industry40/opcua/stack-comparison/feature-matrix?rev=1785454586&do=diff OPC UA stack feature comparison: what the four open-source stacks implement Four open-source OPC UA stacks are realistic candidates for an industrial product: S2OPC, open62541, node-opcua and python-asyncua. This page compares them across the capabilities most often asked about when specifying a device or a gateway: security policies, PubSub and TSN, historical access, alarms, companion specifications, embedded targets and licensing. text/html 2026-07-30T23:36:26+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/technology/industry40/opcua/stack-comparison/assessment-2020?rev=1785454586&do=diff OPC UA stack comparison: the 2020 assessment This is the first comparison we made of the open-source OPC UA stacks, kept and republished as a dated historical record. It was assessed in the first half of 2020 and was never maintained afterwards. It is here because a comparison is more useful when you can see how the field has moved, and for no other reason. text/html 2026-07-30T23:36:19+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/technology/industry40/dds/start?rev=1785454579&do=diff DDS in industrial systems: the data backbone explained DDS (Data Distribution Service) is an OMG-standard, data-centric publish/subscribe middleware for distributing real-time data between the software components of a distributed system (controllers, HMIs, data loggers, gateways), with no central broker. Instead of sending messages to a server, applications publish and subscribe to typed topics, and the middleware handles discovery, delivery and quality of service. It is the backbone technology… text/html 2026-07-30T22:00:31+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/?image=logos%3Aprofinet.png&ns=logos&rev=1785448831&tab_details=history&media_do=diff&do=media <img src="https://wiki.aeicor.com/_media/logos/profinet.png?w=500&amp;h=500&amp;tok=469308" alt="profinet.png" loading="lazy" width="500" height="500" /> text/html 2026-07-30T22:00:31+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/?image=logos%3Aprofibus.png&ns=logos&rev=1785448831&tab_details=history&media_do=diff&do=media <img src="https://wiki.aeicor.com/_media/logos/profibus.png?w=500&amp;h=500&amp;tok=302cae" alt="profibus.png" loading="lazy" width="500" height="500" /> text/html 2026-07-30T22:00:31+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/?image=logos%3As2opc.png&ns=logos&rev=1785448831&tab_details=history&media_do=diff&do=media <img src="https://wiki.aeicor.com/_media/logos/s2opc.png?w=500&amp;h=500&amp;tok=ff7d19" alt="s2opc.png" loading="lazy" width="500" height="500" /> text/html 2026-07-30T22:00:30+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/?image=logos%3Anodeopcua.png&ns=logos&rev=1785448830&tab_details=history&media_do=diff&do=media <img src="https://wiki.aeicor.com/_media/logos/nodeopcua.png?w=500&amp;h=500&amp;tok=bcbaf9" alt="nodeopcua.png" loading="lazy" width="500" height="500" /> text/html 2026-07-30T22:00:30+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/?image=logos%3Aopen62541.png&ns=logos&rev=1785448830&tab_details=history&media_do=diff&do=media <img src="https://wiki.aeicor.com/_media/logos/open62541.png?w=500&amp;h=500&amp;tok=7dc632" alt="open62541.png" loading="lazy" width="500" height="500" /> text/html 2026-07-30T22:00:30+00:00 apibot (apibot@undisclosed.example.com) https://wiki.aeicor.com/?image=logos%3Aeplk.jpg&ns=logos&rev=1785448830&tab_details=history&media_do=diff&do=media <img src="https://wiki.aeicor.com/_media/logos/eplk.jpg?w=500&amp;h=500&amp;tok=423f1e" alt="eplk.jpg" loading="lazy" width="500" height="500" />