During the final assembly of a passenger car, the read/write module is mounted on the conveyor that transports body-in-white units between stations. It reads the RFID tag attached to each chassis, writes the current process step, and updates the central manufacturing execution system in real time. This continuous data exchange guarantees that every vehicle follows the exact sequence of welding, painting, and trim installation without manual intervention. In a robotic welding cell, the module links the robot controller to the workpiece identifier, allowing the robot to verify part orientation before initiating the weld, thus preventing mismatches and rework. The same technology is employed on the paint line, where it records the exact moment a panel enters the spray booth and logs the curing time, enabling precise quality control. By embedding the module directly into the machine’s I/O network, plant engineers achieve seamless traceability, flexible reconfiguration of the line layout, and immediate feedback for operators. The result is a production line that can adapt to model changes while maintaining strict part‑tracking throughout the vehicle build.