Communication in multi-carrier systems, linear motors, transport devices

A linear motor stator comprising

• a guide rail extending in the drive direction,
• a plurality of electromagnets spaced apart in the drive direction and arranged at the guide rail,
• switching devices for individually setting the energization of the electromagnets,
• a control device for controlling the switching devices, the control device comprising
• a first control component that is adapted to cause, in accordance with a drive desired value, the generation of first PWM control signals for controlling the energization of the electromagnets, and
• a second control component that is adapted to cause, in accordance with information to be transmitted, the generation of the first PWM control signals to be converted into a generation of other second PWM control signals.

A linear motor carrier comprising

• rollers for rolling on a guide rail extending in the drive direction,
• a magnetic core that is arranged such that it can be passed through by a magnetic field generated by a linear motor stator,
• a pick-up coil that is wound around the magnetic core and that is adapted to generate electrical variables induced in accordance with a magnetic field passing through the magnetic core,
• a circuit that is connected to the pick-up coil and that is adapted to record, convert and store the information inherent in the induced electrical variables,
• wherein the circuit can be adapted to absorb, convert and store the electrical energy inherent in the induced electrical variables.