APM.MV_DCOST_SLOPE - APMonitor Option
Type: Floating Point, Input Default Value: 0.1 Description: Slope for penalization on future MV moves to reduce controller procrastination
MV_DCOST_SLOPE implements a linear increase in movement penalty (DCOST). The increase in DCOST favors near term movement in the manipulated variable. One issue with a deadband trajectory is a phenomena called controller procrastination where the optimal solution delays a move because it gives an equal objective function to wait one or more cycles. This causes the controller to be stuck in a state of inaction. Favoring movement on the first step of the controller avoids this delay in implementing the needed changes.