All of the CAN VIs are available on FIRSTForge.
http://firstforge.wpi.edu/sf/frs/do/....canjaguar/frs
The VIs included with LabVIEW do not support CAN. The SetSpeed VI that comes with LabVIEW uses PWM and sets a voltage, it doesn't actually set a closed loop speed.
CAN does not run from the digital sidecar, it either runs from the serial port on the cRIO through a black jaguar or from ethernet through a
2CAN. When you said CAN, did you really mean PWM?