.Modelica.Mechanics.MultiBody.Examples.Systems.RobotR3.Utilities.AxisControlBus .Modelica.Mechanics.MultiBody.Examples.Systems.RobotR3.Utilities.AxisControlBusSignal bus that is used to communicate all signals for one axis. This is an expandable connector which has a "default" set of signals. Note, the input/output causalities of the signals are determined from the connections to this bus.