In which mode does the controller automatically operate the final control element with minimal operator interaction?

The controller operates the final control element in an Automatic Mode, where it continuously regulates the process variables without requiring frequent operator input. In this mode, the system uses feedback mechanisms to monitor process conditions and make adjustments accordingly to maintain desired operating parameters. This allows for optimal and consistent performance, as the controller can react to changes in the system in real time.

Automatic Mode enhances efficiency and stability, which is particularly important in complex processes where constant manual intervention would be impractical. By relying on pre-set control algorithms and sensors, the system ensures that operations proceed smoothly and any deviations from set points are corrected automatically, thereby reducing the risk of human error.