Composition of Numerical Control System

The CNC system consists of numerical control program storage devices (from early paper tapes to magnetic rings, to magnetic tapes, disks, and general-purpose hard drives), computer control hosts (evolved from specialized computers to PC architecture computers), programmable logic controllers (PLCs), spindle drive devices, and feed (servo) drive devices (including detection devices).

Due to the gradual use of general-purpose computers, numerical control systems have become increasingly software oriented, and PLC has replaced traditional machine tool electrical logic control devices, making the system smaller, more flexible, versatile, and reliable. It is easy to implement complex numerical control functions, easy to use and maintain, and has the function of connecting to the network and conducting remote communication.