The Quanser Q1-cRIO is a C series module for the National Instruments CompactRIO controller. The Q1-cRIO module has been designed specifically for controls education and allows to easily interface with most Quanser control experiments. The Q1-cRIO has one analog input, one analog output, and two configurable single-ended encoder input interfaces. All inputs and outputs are accessed simultaneously, using unbuffered single point reads and writes, a requirement for real-time applications. The Q1-cRIO module is driven by the Quanser Rapid Control Prototyping (RCP) Toolkit for LabVIEW™, which allows powerful control algorithms to be developed for the NI CompactRIO in a straightforward and efficient way.
Same as the physical Rotary Servo Base Unit, the virtual system features a DC motor that drives a smaller pinion gear. This gear is fixed to a larger middle gear that rotates on the load shaft. The position of the load shaft is measured using a high-resolution optical encoder or a potentiometer.