Abstract: A peer-to-peer control system for a circuit board production line includes multiple processing stations, each of which has an adjustable width conveyor. Control means are provided at each station for controlling the width of the conveyor, receiving board width data signals from an adjacent upstream processing station, and passing the board width data signal, in turn, to an adjacent downstream processing station. A data signal communication network directly connects the controller of each of the processing stations, such as a programmable logic controller, to the controllers of adjacent upstream and downstream stations. Data signals corresponding to the width of circuit boards to be processed by the circuit board production line progress downstream through the line in tandem with circuit boards of that width.