Example - one zone of heat in my house is driven by the reading on the thermostat unless my son is sleeping, in which case the temp reading from the motion sensor in his room drives the logic. Other areas of my house, the heat and air are determined by a combination of the mode and whether or not there is motion. For instance, if no humans are home and just the dogs, motion will make the room a few degrees warmer than it would if there were people home.