Figure 37: Electric circuit example (MOCKUP)

This is not a screenshot of the spec document figure, it's actually been redone in a drawing program (as you can tell from the not so perfect wiggles on the inductor).

But what exactly is it? Is it a wiring diagram? An electrical circuit diagram? An electrical schematic? Most importantly, what do the lines between the positive pins (indicated Modelica-style as small black filled squares) and/or the negative pins (indicated Modelica-style as small black empty squares) stand for?

Throughout this section of the trail the following will be driven home:

GOTCHA: A SysML/SysPhS Connector (or Modelica connection) in an electronics model is NOT a wire! It's a contract between connected Ports.

Because of the relatively forgiving wonders of Kirchhoff's circuit laws, so-called lumped circuit models are forever being conflated with physical wiring diagrams with perfectly lossless wires. This doesn't usually matter from the topological point of view of circuit design, but it DOES matter from the point of view of precise analysis of SysML/SysPhS model elements!

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Modelica versions of the ElectricCircuit (with and without overlapping connect lines)

Notes

[ANTI-PATTERN, ISSUE]{STRONG} GOTCHA: A SysML/SysPhS Connector (or Modelica connection) in an electronics model is NOT a wire! It's a contract between connected Ports.

Snippets (quotes/extracts)

[SysPhS-1.1] A.2.2 System being modeled: The electrical circuit has six components: ground, electrical source, inductor, capacitor, and two resistors, see Figure 37.