Function and usage: sensor processor is a information processor that matches to all kinds of sensor tape, which can react in 1 second to the sensor tape when it rebound. For example, if the sensor tape barred by people or goods when a motor-driven roller door is closed, the sensor processor will receive an instruction immediately and then send it to the master controller in 1 second, the master controller control motor according to setting instructions immediately, the functions can be customized:1) electric roller door resistance stop 2) electric roller door resistance rebound 3) electric roller door resistance rebound 20 centimeters before stop.