When two inputs are made at the same time by both pilots, a GREEN caption light illuminates in front of the Capt/First officer {ANN-SIDE STICK PRIORTY}. If two inputs are made simultaneously then the input signals are summed for magnitude and direction. If the input signals are of the same direction then the Electrical Flight Control System computes a resultant which commands aircraft movement. If the two inputs are made of different directions then the EFCS will cancel out both inputs without any change to the flight path.
If priorty is required by, for example, the captain wants to gain control over the first officer, then a red button on the side stick would be pressed which controls the priority logic and the captain would have priority. He would see a green caption [ANN-SIDE STICK PRIORTY} followed by an aural warning of "Priority Left". The first officer would see a red caption {ANN-SIDE STICK PRIORTY} If the first officer decides he wants to override the captain, he would hold down the red button on the side stick which would override the whole system.
A bit detailed but hopefully of some help
{Not treading on your toes Spannersatcx}
c24
Last edited by cessna24; 4th July 2009 at 20:23.