137.What is the meaning of MOCS (Multiple Output Control System) and where it shall be applied?

The control system which control single PV using a process PID controller as Master and an auxiliary Integral controller as slave is called MOCS.When the PV is controlled by more than 1 final element, using MOCS will provide automatic gain modification for number of A/M stations on Auto. Also provide facility to use Feed Forward loop for such loop. One example is the Furnace Pressure control using 2 x 60% ID Fans. The FF will be from the FD Fan inlet vane demand.