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IfcControllerTypeEnum

Definition from IAI: The IfcControllerTypeEnum defines the range of different types of controller that can be specified.

HISTORY: New type in IFC R2.0

Enumeration

Value Definition Pset
FLOATING Output increases or decreases at a constant or accelerating rate NO
PROPORTIONAL Output is proportional to the control error NO
PROPORTIONALINTEGRAL Part of the output is proportional to the control error and part is proportional to the time integral of the control error NO
PROPORTIONALINTEGRALDERIVATIVE part of the output is proportional to the control error, part is proportional to the time integral of the control error and part is proportional to the time derivative of the control error NO
TIMEDTWOPOSITION Output changes state for a time interval proportional to the deviation from setpoint NO
TWOPOSITION Binary output, can be either on or off NO
USERDEFINED
NOTDEFINED

EXPRESS specification:

TYPE IfcControllerTypeEnum = ENUMERATION OF
( FLOATING,
PROPORTIONAL,
PROPORTIONALINTEGRAL,
PROPORTIONALINTEGRALDERIVATIVE,
TIMEDTWOPOSITION,
TWOPOSITION,
USERDEFINED,
NOTDEFINED);
END_TYPE;