Research and application of OPC UA server based on resource constrained platform STM32

In view of the rapid development trend of intelligent manufacturing and the application status of OPC UA protocol in the field of intelligent manufacturing, the requirement of building OPC UA server on resource constrained platform is proposed. By building STM32 platform and FreeRTOS system environment, the transplantation and operation of OPC UA protocol stack in resource limited platform are realized, the main memory space occupied by OPC UA protocol stack is analyzed, and the implementation path is proposed for later optimization. Through experimental verification, the OPC UA protocol stack runs on the resource limited platform, and the server can be widely used and popularized in the resource limited platform.