IfcControllerTypeEnum

Item	SPF	XML	Change
IFC2x3 to IFC4
IfcControllerTypeEnum
PROGRAMMABLE			ADDED
MULTIPOSITION			ADDED
PROPORTIONALINTEGRAL	X	X	DELETED
PROPORTIONALINTEGRALDERIVATIVE	X	X	DELETED
TIMEDTWOPOSITION	X	X	DELETED

Semantic definitions at the type

Type definition

The IfcControllerTypeEnum defines the range of different types of controller that can be specified.

HISTORY New enumeration in IFC2.0.

IFC4 CHANGE PROPORTIONALINTEGRAL and PROPORTIONALINTEGRALDERIVATIVE values deleted (property set enumeration now used). MULTIPOSITION added.

Enumeration definition

Constant	Description
FLOATING	Output increases or decreases at a constant or accelerating rate.
PROGRAMMABLE	Output is programmable such as Discrete Digital Control (DDC).
PROPORTIONAL	Output is proportional to the control error and optionally time integral and derivative.
MULTIPOSITION	Output is discrete value, can be one of three or more values.
TWOPOSITION	Output can be either on or off.
USERDEFINED	User-defined type.
NOTDEFINED	Undefined type.

Formal representations

XSD Specification

 <xs:simpleType name="IfcControllerTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="floating"/>

   <xs:enumeration value="programmable"/>

   <xs:enumeration value="proportional"/>

   <xs:enumeration value="multiposition"/>

   <xs:enumeration value="twoposition"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcControllerTypeEnum = ENUMERATION OF (

 FLOATING, 
 PROGRAMMABLE, 
 PROPORTIONAL, 
 MULTIPOSITION, 
 TWOPOSITION, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

	Controller Type Enum
	Énumération des types d'organes de contrôle