Within the process industry, the implementation of IoT concepts is particularly challenging in established plants, as the necessary information from the field devices is not captured in their automation architecture. This is where NAMUR Open Architecture (NOA) offers the ideal solution. The NOA concept pursues the approach of extending the automation architecture without altering the existing control system. The core task of NOA is to provide information from the field level to higher-level applications in order to monitor and optimize the plant (M+O).