Conservative

• Conservative pins belong to components of physical domains (electrical, fluidic, magnetic, mechanical, thermal). Each conservative pin has a nature type —such as: electrical, thermal, or fluidic — assigned to it.
• Conservative pins have no direction attribute.
• You can connect only pins with the same nature type directly.
• To connect pins of different natures use the Domain-to-Domain (D2D) component located in the Tools>Nature Transformation library.
• To connect conservative pins or wires to non-conservative nodes, use the Conservative-to-Non-Conservative (C2NC) component, also located in the Tools>Nature Transformation library. The C2NC component functions as an output and supplies the across quantity from the conservative domain (such as voltage) to the non-conservative input(s).
• Conservative pins can be displayed or hidden. If you hide a conservative pin, you can define the connection through a name reference.

Non-conservative

• Non-conservative pins can belong to circuit as well as block diagram and state graph components. Non-conservative pins represent many different data types. A real-valued quantity (for the magnitude of a voltage source), a record of mixed data (for a VHDL-AMS model), or a std_logic enum (for a digital component) are examples of data types. The data type includes size for arrays, so that an 8-wide array of real values is not the same type as a 16-wide array of real values.
• Non-conservative pins can have one of the following direction attributes: IN, OUT, or IN/OUT.
• You can connect only pins of the same data type directly.
• To connect different data types, OmniCaster components, located in the Tools library may be used for many situations. For size-related changes, Bus Entries may be used to specify an appropriate subset for connection between wider and narrower nodes.
• Non-conservative pins can be displayed or hidden. If you hide a component pin, you can define the connection through a name reference.