Function: 1.whole machine running or controlling completed by PLC programme controller. PLC touch screen controlled, so that you can see the machine working condition clearly.2. high precision photo-cell color-mark slotting system, correct cutting position, when no candy, the packing film will stop. 3. autosettling or feeding, single layer or double layer packing film. 4. auto fault-alarming device to show the fault and alarm on time. 5. it can equip double-twist packing function to make the machine functional.