7.2.3.11 IfcUnitaryControlElement

Elément de contrôle unitaire
Einheitsregler

A unitary control element combines a number of control components into a single product, such as a thermostat or humidistat.

A unitary control element provides a housing for an aggregation of control or electrical distribution elements that, in combination, perform a singular (unitary) purpose. Each item in the aggregation may have its own geometric representation and location.

HISTORY  New entity in IFC4

Common Use Definitions

The following concepts are inherited at supertypes:

 Instance diagram

Object Typing

The Object Typing concept applies to this entity as shown in Table 283.
Type
IfcUnitaryControlElementType
IfcDistributionControlElementType
IfcDistributionElementType

Table 283 — IfcUnitaryControlElement Object Typing



Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 284.
PredefinedTypeName
 Pset_UnitaryControlElementPHistory
 Pset_UnitaryControlElementTypeCommon
INDICATORPANELPset_UnitaryControlElementTypeIndicatorPanel
THERMOSTATPset_UnitaryControlElementTypeThermostat
 Pset_ElectricalDeviceCommon
 Pset_Condition
 Pset_EnvironmentalImpactIndicators
 Pset_EnvironmentalImpactValues
 Pset_ManufacturerOccurrence
 Pset_ManufacturerTypeInformation
 Pset_PackingInstructions
 Pset_ServiceLife
 Pset_Warranty

Table 284 — IfcUnitaryControlElement Property Sets for Objects



Quantity Sets

The Quantity Sets concept applies to this entity as shown in Table 285.
Name
Qto_UnitaryControlElementBaseQuantities

Table 285 — IfcUnitaryControlElement Quantity Sets



Material Constituents

The Material Constituents concept applies to this entity as shown in Table 286.
NameDescription
CasingMaterial from which the casing is constructed.

Table 286 — IfcUnitaryControlElement Material Constituents



Port Nesting

The Port Nesting concept applies to this entity as shown in Table 287.
PredefinedTypeNameFlowTypeDescription
 ControlSOURCECONTROLReceives power (typically 24V), and closes the circuit for Fan, Heat, and Cool. Port may be aggregated into sub-ports: 'Fan'(SIGNAL,SOURCE), 'Heat'(SIGNAL,SOURCE), and 'Cool'(SIGNAL,SOURCE)

Table 287 — IfcUnitaryControlElement Port Nesting




XSD Specification:

 <xs:element name="IfcUnitaryControlElement" type="ifc:IfcUnitaryControlElement" substitutionGroup="ifc:IfcDistributionControlElement" nillable="true"/>
 <xs:complexType name="IfcUnitaryControlElement">
  <xs:complexContent>
   <xs:extension base="ifc:IfcDistributionControlElement">
    <xs:attribute name="PredefinedType" type="ifc:IfcUnitaryControlElementTypeEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

ENTITY IfcUnitaryControlElement
SUBTYPE OF IfcDistributionControlElement;
PredefinedType : OPTIONAL IfcUnitaryControlElementTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcUnitaryControlElementTypeEnum.USERDEFINED) OR ((PredefinedType = IfcUnitaryControlElementTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFCBUILDINGCONTROLSDOMAIN.IFCUNITARYCONTROLELEMENTTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

Formal Propositions:

CorrectPredefinedType : Either the PredefinedType attribute is unset (e.g. because an IfcUnitaryControlElementType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
CorrectTypeAssigned : Either there is no unitary control element type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcUnitaryControlElementType.

Inheritance Graph:

ENTITY IfcUnitaryControlElement
ENTITY IfcRoot
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcObjectDefinition
INVERSE
HasAssignments : SET OF IfcRelAssigns FOR RelatedObjects;
Nests : SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy : SET OF IfcRelNests FOR RelatingObject;
HasContext : SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy : SET OF IfcRelAggregates FOR RelatingObject;
Decomposes : SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations : SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcObject
ObjectType : OPTIONAL IfcLabel;
INVERSE
IsDeclaredBy : SET [0:1] OF IfcRelDefinesByObject FOR RelatedObjects;
Declares : SET OF IfcRelDefinesByObject FOR RelatingObject;
IsTypedBy : SET [0:1] OF IfcRelDefinesByType FOR RelatedObjects;
IsDefinedBy : SET OF IfcRelDefinesByProperties FOR RelatedObjects;
ENTITY IfcProduct
ObjectPlacement : OPTIONAL IfcObjectPlacement;
Representation : OPTIONAL IfcProductRepresentation;
INVERSE
ReferencedBy : SET OF IfcRelAssignsToProduct FOR RelatingProduct;
ENTITY IfcElement
Tag : OPTIONAL IfcIdentifier;
INVERSE
FillsVoids : SET [0:1] OF IfcRelFillsElement FOR RelatedBuildingElement;
ConnectedTo : SET OF IfcRelConnectsElements FOR RelatingElement;
IsInterferedByElements : SET OF IfcRelInterferesElements FOR RelatedElement;
InterferesElements : SET OF IfcRelInterferesElements FOR RelatingElement;
HasProjections : SET OF IfcRelProjectsElement FOR RelatingElement;
ReferencedInStructures : SET OF IfcRelReferencedInSpatialStructure FOR RelatedElements;
HasOpenings : SET OF IfcRelVoidsElement FOR RelatingBuildingElement;
IsConnectionRealization : SET OF IfcRelConnectsWithRealizingElements FOR RealizingElements;
ProvidesBoundaries : SET OF IfcRelSpaceBoundary FOR RelatedBuildingElement;
ConnectedFrom : SET OF IfcRelConnectsElements FOR RelatedElement;
ContainedInStructure : SET [0:1] OF IfcRelContainedInSpatialStructure FOR RelatedElements;
ENTITY IfcDistributionElement
INVERSE
HasPorts : SET OF IfcRelConnectsPortToElement FOR RelatedElement;
ENTITY IfcDistributionControlElement
INVERSE
AssignedToFlowElement : SET [0:1] OF IfcRelFlowControlElements FOR RelatedControlElements;
ENTITY IfcUnitaryControlElement
PredefinedType : OPTIONAL IfcUnitaryControlElementTypeEnum;
END_ENTITY;

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