An Action Clause of a Control Rule can have one of the following formats: 

PUMP id STATUS = ON/OFF

CONDUIT id STATUS = OPEN/CLOSED

PUMP/ORIFICE/WEIR/OUTLET id SETTING = value

The meaning of SETTING depends on the object being controlled:

• for Pumps it is a multiplier applied to the flow computed from the pump curve (or relative pump speed for a TYPE5 pump).
• for Orifices it is the fractional amount that the orifice is fully open (orifice control is accomplished by lowering or raising a horizontal gate from the top of the orifice).
• for Weirs it is the fractional amount of the original freeboard that exists (i.e., weir control is accomplished by moving the crest height up or down)
• for Outlets it is a multiplier applied to the flow computed from the outlet's rating curve.

Some examples of action clauses are:

PUMP P67 STATUS = OFF

ORIFICE O212 SETTING = 0.5