Changes made for Pathfinder 5226 controllers.

In a closed loop system the motion of an axis is based on calculated set points of where it should be in real life. If the real life feedback is not matching up with the set point positions then the control will be adjusted with a PID system to try and match the actual position with the set points. Before when the final calculation for the adjustment the proportional part was just part of the final calculation and not put into a variable. Therefore a variable was created to save the proportional calculation so it could be used for diagnostics and proportional gain timing adjustments.