Cylinder scale adopts 2 sets of controllers with bus communication function, software platform through the SOL + WINCC software development of packaging control management system. The use of industrial control computers to achieve monitoring and control functions, through the programming software to realize the process and equipment control signals such as toxic and hazardous gas probe signals, liquid level, pressure, mixing, current signals: pumps and other facilities such as the state of the equipment, start and stop and other equipment data with the filling system process to form cause and effect conditions, to achieve the logic of interlocking control, and the entire control system is equipped with a four-with UPS power supply unit to ensure stable operation of the system. Reliable.