G_open > 0, default 10⁻¹¹ m³/(Pa·s). u = +1 extends, u = −1 retracts, u = 0 closes every passage. Intermediate magnitude scales conductance. Closed flow is exactly zero; open flow may reverse.
No spool dynamics, leakage or quadratic orifice law. Closing passages does not instantly stop a moving mass. Outputs include command and dissipation. The proportional example retains the existing cylinder circuit without adding MR.
Classic expansion of the four implemented resistive passages. Each passage is 1 + one-port MR; the four 0-junctions collect flows at the named pressure ports. The software’s internal view abbreviates each entire passage as an MR edge; that edge is not the standalone one-power-port MR block. Here each MR obeys Qij = Gij e_MR and e_MR = pi − pj. All four conductances use the same non-power input u as shown below the graph; u = 0 sets all flows to zero. No fluid storage is added by these junctions. Half-arrows set positive power references; dashed pink arrows carry signals only. Causal strokes are omitted because they depend on the connected model.