MQTT

PDComm offers MQTT as the broker transport of OPC UA PubSub. The GUI, headless program and MCP server of the OPC UA simulator publish UADP messages to an MQTT 5.0 broker and subscribe to them. MQTT in PDComm describes where you use it and how it connects.

New to it? The MQTT quickstart sends one message through a local Mosquitto broker and back.

• Background Core concepts, grounded in the standards.
• Quickstart Make a first connection in a few minutes.
• Tutorials Step-by-step projects you can follow end to end.
• Guides Simulator GUI, headless runs, MCP and configuration.
• API reference Look up the C, C++ and .NET APIs.
• Troubleshooting Common problems and how to fix them.