If a given system application utilizes multiple Stop Groups (or non-ConveyStop configured modules) that are physically and logically connected such as a conveyor system; ConveyLinx has built in mechanisms for flow control. If the upstream or in feed end of a Stop Group is being fed by the discharge of ConveyLinx controlled conveyor; a Stop Condition will cause the most upstream module of the Stop Group to indicate to its upstream zone to not allow any item to be conveyed into the Stop Group’s in feed zone.