IFC (IFC4X3_ADD2) under development Pset_ControllerPHistory Semantic definition

Properties for history of controller values.

HISTORY: Added in IFC4. Applicable entities Properties

Name Property Type Data Type Description
ValueHistory IfcPropertyReferenceValue IfcTimeSeries

Indicates values over time which may be recorded continuously or only when changed beyond a particular deadband. The range of possible values is defined by the Value property on the corresponding occurrence property set (Pset_ControllerTypeFloating, Pset_ControllerTypeProportional, Pset_ControllerTypeMultiPosition, or Pset_ControllerTypeTwoPosition).

Quality IfcPropertyReferenceValue IfcTimeSeries

Indicates the quality of measurement or failure condition, which may be further qualified by the Status. True: measured values are considered reliable; False: measured values are considered not reliable (i.e. a fault has been detected); Unknown: reliability of values is uncertain.

Status IfcPropertyReferenceValue IfcTimeSeries

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).

Indicates an error code or identifier, whose meaning is specific to the particular automation system. Example values include: 'ConfigurationError', 'NotConnected', 'DeviceFailure', 'SensorFailure', 'LastKnown, 'CommunicationsFailure', 'OutOfService'.


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Is this page difficult to understand? Let us know! Changelog IFC4

  • New resource IFC4.3_DEV_5d53fb2

  • property, ValueHistory
  • property, Value