Control Loop Foundation

Batch and Continuous Processes -
Interactive Source for Process Control

Override Control

This Override Control workshop is designed to allow the operation of override control to be explored. It is assumed that the PIDs have been tuned.

Step 1. In the Override Control workspace, place the two PIDs in Auto and observe the response when both setpoints are set to 50.

Step 2. Change the setpoint of PID1 to 60 and observe the response of PID2. Change the setpoint of PID1 to 45 and observe the response.

Step 3. Change the disturbance input to 30 and observe the response of the override loop and the process response.