On a robotic welding cell that joins automobile body panels, a toggle switch mounted on the operator’s console initiates the start‑stop sequence for the weld gun. When the line operator flips the switch, the controller receives a discrete signal that enables power to the welding transformer and locks the safety interlock. The same switch is also used to select between manual teach mode and automatic production mode, allowing technicians to program new weld paths without stopping the line. In the paint shop, a similar toggle switch on the conveyor control panel gates the flow of parts into the drying oven; moving the switch to the ‘run’ position releases the belt drive, while the ‘stop’ position holds the conveyor for quality inspection. These actions are performed repeatedly each shift, providing a reliable, low‑effort means for operators to control critical machine functions directly from the workstation.