An apparatus for a power line communication network includes a power line transmitterreceiver, a processor coupled to the power line transmitterreceiver, and memory accessible to the processor. Said dispensing device has a feed pipe for a pourable product, comprising an exit opening and a shut-off flap that is situated at the exit opening, and an outlet for the free-flowing product, said outlet being attached to the flap and displaceable with the latter. The thus operated upon frames can be transmitted, received, and processed at a receiver with low latency and very low memory storage The invention further discusses a novel way of temporal compression using signatures of the sub bands generated for spatial compression. The capacitor is coupled to a first data line of a tracking cell of the tracking circuit. A peak time of the screw rotational force is detected as closing point in time of the check ring.