Numerical control system function is divided into basic function and selection function, control mode, drive form, test and measurement, user feedback form, function, operation mode, the interface form to measure and diagnosis, etc.

　　基本功能是必然提供的，而选择功能只有当用户选择了加工中心这些功能后，厂家都会提供，需另行加价，且定价一般较高。

　　Basic function is inevitable, and choose function only when the user selects a machining center, manufacturer will provide, need price separately, and generally higher priced.

　　对数控系统的功能一定要根据机床的性能需要来选择，订购时既要把需要的功能订全，不能遗漏，同时避免使用率不高造成浪费，还需要注意各功能之间的关联性。

　　To must be according to the performance of the machine tool numerical control system function need to choose, when ordering to put required functionality, a can't miss, at the same time avoid waste utilization rate is not high, also need to pay attention to the correlation between each function.

　　在可供选择的数控系统中，性能高低差别很大。价格也可相差数倍。

　　In the selection of nc system, the performance difference is very big. The price also can be a few times.