Huazhong numerical control century star parameter changing tool started to work in 30 seconds. After the parameters of Century Star CNC system are modified, the CNC system must be restarted to take effect. The level of parameters is determined according to the function and importance. The device has three levels of authority, and different authorized users can modify the parameters of the corresponding level. In this way, the system parameters can be properly protected to prevent unnecessary accidents and failures. No special authorization is required to view and back up data.