Implementing OPC UA Companion Specifications with open62541

Companion specifications complement OPC UA with the goal of fostering interoperability. This article will provide an overview about implementing a Companion Specification with open62541. Continue reading Implementing OPC UA Companion Specifications with open62541 at basysKom GmbH.

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Connect OPC UA with open62541 to MS Azure IoT Hub

The open62541 OPC UA stack with its Pub-Sub extension now supports MQTT over TLS as well as MQTT-brokers requiring a login (contributed by basysKom). This allows the direct communication between open62541 and the Azure IoT Hub and therefore highly simplif

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Building Qt OPC UA with open62541

Qt OPC UA is not included in the Qt installer and must be built from source. The open62541 backend is currently the most stable and feature complete open source backend in Qt OPC UA. The open62541 library has minimal external dependencies and can be built

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OPC UA Reverse Connect for open62541

"OPC UA Reverse Connect" is a special connection mode in which the traditional roles of clients and servers during connection establishment are reversed - the server is responsible for initiating the connection to a client. This mode is intended for criti

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Flutter FFI Plugins How to use open62541 in Flutter applications

In this blog we explain how to provide OPCUA open62541 as a ffi plugin to Dart and use it in Flutter. We highlight the pros' and give you the cons. Continue reading Flutter FFI Plugins How to use open62541 in Flutter applications at basysKom GmbH.

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Qt OPC UA: Logging improvements in Qt 6.1

So far programs using Qt OPC UA with the open62541 back-end produced quite a bit of chatter on stdout originating from the open62541 stack itself. Unfortunately there was no simple way to get rid of these low-level logs. We now provide a way to control th

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