Model Distribution Port (FP)

Provides information concerning distribution ports.
A port is a logical mechanism that is used to enable an element to connect to another element. A distribution port is a type of port that is used for connecting together distribution flow elements such as ductwork elements, pipework elements and electrical distribution elements.
A distribution element may have one or more points at which it connects to other elements. A distribution port is located at a point where a connection can occur. The location of the port is determined in the context of the local coordinate system of the element to which it belongs.

A port is defined as belonging to a particular element through a port to element connection relationship.

The information that is captured concerning a distribution port includes:

Specification of port name and description if required
Placement of the port in the context of the local coordinate system of the element to which it belongs
The port may be assigned a shape representation; for a distribution system this would typically be a point.
Specification of the relationship between the port and the element for which it provides a connection opportunity
The direction of flow through the port
The number of the port in the context of the element
The type of connection made at the port

Note that in use, the port will be defined according to the type of system in which it is used. This usage defines properties (within particular property sets) that can be applied. The type of system may be set as a parameter in the exchange requirement by:

fp_model_distribution_port [duct]
fp_model_distribution_port [pipe]
fp_model_distribution_port [cable]
fp_model_distribution_port [cablecarrier]

Results

Model of ports and identification of the element to which ports belong

Description	Entity/Pset/Functional Part	MAN	REC	OPT
Determine the element to which the port is assigned This will be a subtype of IfcDistributionElement	IfcElement (subtype)

Model the port occurrence
Set the global unique identifier	IfcDoorStyle.GlobalId -> IfcGloballyUniqueId
Apply the owner history	IfcDoorStyle.OwnerHistory -> fp_apply_owner_history
Specify a name for the distribution port	IfcDistributionPort.Name
Specify a description for the distribution port	IfcDistributionPort.Description
Place the port in the context of the element	IfcDistributionPort.ObjectPlacement -> fp_place_object
Assign the flow direction of the distribution port Flow through a port may be defined as outward from the element (SOURCE), inward to the element (SINK), either outward or inward (SOURCEANDSINK) or left as not defined. Although this attribute is optional in the IFC model, it is recommended that it should be asserted.	IfcDistributionPort.FlowDirection -> IfcFlowDirectionEnum

Establish the port connection relationship
Make the port into the relating port of a connects port to element relationship	IfcRelConnectsPortToElement.RelatingPort -> IfcDistributionPort
Make the element into the related element of a connects port to element relationship	IfcRelConnectsPortToElement.RelatedElement -> IfcElement (subtype)

For a port in a ductwork element, set values in the property set Pset_ DistributionPortDuct as indicated below.
Set the value for the port number The port number is defined in the context of the element according to local usage. For instance, for a tee element, the inlet port will be numbered 1, the outlet port will be numbered 2 and the branch distribution port will be numbered 3.	Pset_DistributionPortDuct.PortNumber -> IfcPropertySingleValue
Set the connection type of the port The connection type defines the method by which the connection is made.	Pset_DistributionPortDuct.ConnectionType -> IfcPropertyEnumeratedValue

For a port in a pipework element, set values in the property set Pset_ DistributionPortPipe as indicated below.
Set the value for the port number The port number is defined in the context of the element according to local usage. For instance, for a tee element, the inlet port will be numbered 1, the outlet port will be numbered 2 and the branch distribution port will be numbered 3.	Pset_DistributionPortPipe.PortNumber -> IfcPropertySingleValue
Set the connection type of the port The connection type defines the method by which the connection is made.	Pset_DistributionPortPipe.ConnectionType -> IfcPropertyEnumeratedValue

For a port in an electrical distribution element, set values in the property set Pset_ DistributionPortCable as indicated below.
Set the value for the port number The port number is defined in the context of the element according to local usage. For instance, for a tee element, the inlet port will be numbered 1, the outlet port will be numbered 2 and the branch distribution port will be numbered 3.	Pset_DistributionPortCable.PortNumber -> IfcPropertySingleValue
Set the connection type of the port The connection type defines the method by which the connection is made.	Pset_DistributionPortCable.ConnectionType -> IfcPropertyEnumeratedValue

Define the port to which the properties apply	fp_define_by_properties

IFC Entities Required
- IfcDistributionPort
- IfcElement
- IfcObject
- IfcPort
- IfcProduct
- IfcRelationship
- IfcRelConnects
- IfcRelConnectsPortToElement
- IfcRoot
IFC Datatypes Required
- IfcFlowDirectionEnum
- IfcGloballyUniqueId
- IfcIdentifier
- IfcLabel
- IfcText
IFC Functions Required
- -
IFC Property Sets Required
- Pset_DistributionPortDuct
- Pset_DistributionPortPipe
IDM Functional Parts Required
- fp_apply_owner_history
- fp_define_by_properties
- fp_place_object
- fp_represent_product

EXPRESS-G

EXPRESS Schema

SCHEMA FP_MODEL_DISTRIBUTION_PORT;

  TYPE IfcGloballyUniqueId = STRING (22) FIXED;
  END_TYPE;

  TYPE IfcIdentifier = STRING;
  END_TYPE;

  TYPE IfcLabel = STRING;
  END_TYPE;

  TYPE IfcText = STRING;
  END_TYPE;

  TYPE IfcFlowDirectionEnum = ENUMERATION OF
    (SOURCE,
     SINK,
     SOURCEANDSINK,
     NOTDEFINED);
  END_TYPE;

  ENTITY IfcProduct
    ABSTRACT SUPERTYPE OF (ONEOF(IfcElement, IfcPort))
    SUBTYPE OF(IfcObject);
      ObjectPlacement : OPTIONAL fp_place_object;
      Representation  : OPTIONAL fp_represent_product;
    WHERE
      WR1 : (EXISTS(Representation) AND EXISTS(ObjectPlacement))
            OR (EXISTS(Representation) AND 
            (NOT('IFC2X2_FINAL.IFCPRODUCTDEFINITIONSHAPE' IN TYPEOF(Representation))))
            OR (NOT(EXISTS(Representation)));
  END_ENTITY;

  ENTITY IfcObject
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcRoot);
      ObjectType : OPTIONAL IfcLabel;
    WHERE
      WR1 : SIZEOF(QUERY(temp <* IsDefinedBy | 'IFC2X2_FINAL.IFCRELDEFINESBYTYPE' IN TYPEOF(temp))) <= 1;
  END_ENTITY;

  ENTITY IfcRoot
    ABSTRACT SUPERTYPE OF (ONEOF(IfcObject, IfcRelationship));
      GlobalId     : IfcGloballyUniqueId;
      Name         : OPTIONAL IfcLabel;
      Description  : OPTIONAL IfcText;
      OwnerHistory : fp_apply_owner_history;
    UNIQUE
      UR1 : GlobalId;
  END_ENTITY;

  ENTITY IfcRelationship
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcRoot);
  END_ENTITY;

  ENTITY IfcRelConnects
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcRelationship);
  END_ENTITY;

  ENTITY IfcElement
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcProduct);
      Tag      : OPTIONAL IfcIdentifier;
    INVERSE
      HasPorts : SET OF IfcRelConnectsPortToElement FOR RelatedElement;
  END_ENTITY;

  ENTITY IfcRelConnectsPortToElement
    SUBTYPE OF(IfcRelConnects);
      RelatingPort   : IfcPort;
      RelatedElement : IfcElement;
  END_ENTITY;

  ENTITY IfcPort
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcProduct);
    INVERSE
      ContainedIn : IfcRelConnectsPortToElement FOR RelatingPort;
  END_ENTITY;

  ENTITY fp_apply_owner_history;
  END_ENTITY;

  ENTITY fp_place_object;
  END_ENTITY;

  ENTITY fp_represent_product;
  END_ENTITY;

  ENTITY IfcDistributionPort
    SUBTYPE OF(IfcPort);
      FlowDirection : OPTIONAL IfcFlowDirectionEnum;
  END_ENTITY;

  ENTITY fp_define_by_properties;
  END_ENTITY;

END_SCHEMA;

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Model Distribution Port (FP)

Results

EXPRESS-G

EXPRESS Schema