Systems and methods are provided that enable high-level and abstract business engines to affect and influence plant-floor or industrial operations via dynamic and flexible operator interfaces. This allows the person filling the delivery system or storage container to remain at a safe and convenient location while operating the vacuum-based filling system. The memory portion writes or reads data to or from the memory cells based on the first voltage and the second voltage, and the power supply circuit portion provides a smaller voltage difference between the first voltage and the second voltage in the second operation mode as compared with the voltage difference in the first operation mode. The actuating device includes a spring coil and a connecting member defining a second touch portion which is urged by the spring coil to contact with the first touch portion.