Class Ifc4x3_rc1::IfcController

Nested Relationships

This class is a nested type of Struct Ifc4x3_rc1.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4x3_rc1::IfcController : public Ifc4x3_rc1::IfcDistributionControlElement

A controller is a device that monitors inputs and controls outputs within a building automation system. A controller may be physical (having placement within a spatial structure) or logical (a software interface or aggregated within a programmable physical controller).

HISTORY New entity in IFC2x4

Type Use Definition IfcController defines the occurrence of any controller; common information about controller types is handled by IfcControllerType. The IfcControllerType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcControllerType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcControllerType has ports or aggregated elements, such objects are reflected at the IfcController occurrence using the IfcRelDefinesByObject relationship. Figure 177 illustrates controller type use. Figure 177 — Controller type use

Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcControllerType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcControllerType.HasPropertySets. If both are given, then the properties directly defined at IfcController override the properties defined at IfcControllerType. Refer to the documentation at the supertype IfcDistributionControlElement and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: (All Types)

Pset_ControllerPHistory (PSET_PERFORMANCEDRIVEN) Pset_ControllerTypeCommon (PSET_TYPEDRIVENOVERRIDE)

FLOATING

Pset_ControllerTypeFloating (PSET_TYPEDRIVENOVERRIDE)

MULTIPOSITION

Pset_ControllerTypeMultiPosition (PSET_TYPEDRIVENOVERRIDE)

PROGRAMMABLE

Pset_ControllerTypeProgrammable (PSET_TYPEDRIVENOVERRIDE)

PROPORTIONAL

Pset_ControllerTypeProportional (PSET_TYPEDRIVENOVERRIDE)

TWOPOSITION

Pset_ControllerTypeTwoPosition (PSET_TYPEDRIVENOVERRIDE)

Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.

Qto_ControllerBaseQuantities

Composition Use Definition The IfcController may be aggregated into components using IfcRelAggregates where RelatingObject refers to the enclosing IfcController and RelatedObjects contains one or more components. Aggregation use is defined for the following predefined types:

PROGRAMMABLE

May contain IfcController components. Programmable Logic Controllers may be decomposed into logical elements for values and operations.

Material Use Definition The material of the IfcController is defined by IfcMaterialConstituentSet or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcControllerType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:

Casing: Material from which the casing is constructed.

Port Use Definition The distribution ports relating to the IfcController are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the controller occurrence is defined by IfcControllerType, then the port occurrences must reflect those defined at the IfcControllerType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcController PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:

FLOATING

Input (SIGNAL, SINK): Receives the first parameter. Modifier (SIGNAL, SINK): Receives the second parameter (if applicable). Output (SIGNAL, SOURCE): Sets the output value.

MULTIPOSITION

Input (SIGNAL, SINK): Receives the first parameter. Modifier (SIGNAL, SINK): Receives the second parameter (if applicable). Output (SIGNAL, SOURCE): Sets the output value.

PROGRAMMABLE

Power (ELECTRICAL, SINK): Receives electrical power. Control (CONTROL, SINK): Direct communication to the device (e.g. serial port). Data (DATA, SOURCE): Network communication to the device (e.g. TCP/IP network). Input#1 (SIGNAL, SINK): Analog or digital inputs. Output#1 (SIGNAL, SOURCE): Analog or digital outputs.

PROPORTIONAL

Input (SIGNAL, SINK): Receives the first parameter. Modifier (SIGNAL, SINK): Receives the second parameter (if applicable). Output (SIGNAL, SOURCE): Sets the output value.

TWOPOSITION

Input (SIGNAL, SINK): Receives the first parameter. Modifier (SIGNAL, SINK): Receives the second parameter (if applicable). Output (SIGNAL, SOURCE): Sets the output value.

Figure 178 illustrates controller port use. Figure 178 — Controller port use

Public Types

typedef IfcTemplatedEntityList<IfcController> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcController.

::Ifc4x3_rc1::IfcControllerTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4x3_rc1::IfcControllerTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcController(IfcEntityInstanceData *e)
IfcController(std::string v1_GlobalId, ::Ifc4x3_rc1::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4x3_rc1::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4x3_rc1::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4x3_rc1::IfcControllerTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()