IFC (IFC4X3) development Pset_SwitchingDeviceTypeCommon Semantic definition

A switching device is a device designed to make or break the current in one or more electric circuits. Applicable entities Properties

Name Property Type Data Type Description
Reference IfcPropertySingleValue IfcIdentifier

Reference ID for this specified type in this project (e.g. type 'A-1'), Also referred to as "construction type". It should be provided as an alternative to the name of the "object type", if the software does not support object types and no classification reference to a recognized classification system used.

Status IfcPropertyEnumeratedValue PEnum_ElementStatus

Status of the element, predominately used in renovation or retrofitting projects. The status can be assigned to as "New" - element designed as new addition, "Existing" - element exists and remains, "Demolish" - element existed but is to be demolished, "Temporary" - element will exists only temporary (like a temporary support structure).

NumberOfGangs IfcPropertySingleValue IfcCountMeasure

Number of gangs in the object.

Number of gangs/buttons on this switch.

SwitchFunction IfcPropertyEnumeratedValue PEnum_SwitchFunctionType

Indicates types of switches which differs in functionality.

HasLock IfcPropertySingleValue IfcBoolean

Indication of whether a switching device has a key operated lock (=TRUE) or not (= FALSE).

IsIlluminated IfcPropertySingleValue IfcBoolean

An indication of whether there is an illuminated indicator to show that the switch is on (=TRUE) or not (= FALSE).

Legend IfcPropertySingleValue IfcLabel

A text inscribed or applied to the switch as a legend to indicate purpose or function.

SetPoint IfcPropertyTableValue IfcLabel/IfcInteger

Indicates the setpoint and label.

For toggle switches, there are two positions, 0 for off and 1 for on. For dimmer switches, the values may indicate the fully-off and full-on positions, where missing integer values in between are interpolated. For selector switches, the range indicates the available positions. An IfcTable may be attached (using IfcMetric and IfcPropertyConstraintRelationship) containing columns of the specified header names and types: 'Position' (IfcInteger): The discrete setpoint level. 'Sink' (IfcLabel): The Name of the switched input port (IfcDistributionPort with FlowDirection=SINK). 'Source' (IfcLabel): The Name of the switched output port (IfcDistributionPort with FlowDirection=SOURCE). 'Ratio' (IfcNormalizedRatioMeasure): The ratio of power at the setpoint where 0.0 is off and 1.0 is fully on.


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