Ports

In this section all Port related information needed to satisfy the Exchange HVAC Model - (Systems) will be described.

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.

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:

Owner History

Information Needed	Man	Opt	Rec	Actor Supplying	Functional Part
The owner history of the port must be asserted.				HVAC Designer	Model Distribution Port (FP)

General Attributes

Information Needed	Man	Opt	Rec	Actor Supplying	Functional Part
Specification of port name.				HVAC Designer	Model Distribution Port (FP)
Specification of port description.				HVAC Designer	Model Distribution Port (FP)
Placement of the port in the context of the local coordinate system of the element to which it belongs.				HVAC Designer	Model Distribution Port (FP)
The port may be assigned a shape representation; for a distribution system this would typically be a point.				HVAC Designer	Model Distribution Port (FP)
Specification of the relationship between the port and the element for which it provides a connection opportunity.				HVAC Designer	Model Distribution Port (FP)
The direction of flow through the port.				HVAC Designer	Model Distribution Port (FP)

Properties

Information Needed	Man	Opt	Rec	Actor Supplying	Functional Part
Additional properties that may be defined for ports includes:
The number of the port in the context of the element				HVAC Designer	Model Distribution Port (FP)
The type of connection made at the port				HVAC Designer	Model Distribution Port (FP)

Connection

Information Needed	Man	Opt	Rec	Actor Supplying	Functional Part
Defines the connection made between two ports. For connections made between ports, the values of flow direction for each port must match. If the flow direction of the relating port is a SOURCE (outgoing), the flow direction of the related port must be SINK (incoming). If the flow direction of the relating port is SOURCEANDSINK, the flow direction of the related port must also be SOURCEANDSINK				HVAC Designer	Connect Ports (FP)