The company is specialized in motion control system integration, technology application, product development and related mechanical and electrical products sales of high-tech enterprises. The enterprise is based on the mechanical and electrical industry, and strive to provide customers with the best cost-effective products and the most perfect system integration program. There are many kinds of numerical control system in the world, which have their own characteristics. These structural features are derived from the basic requirements of the initial design of the system and the design of hardware and software. For different manufacturers, based on the historical development and their due to the influence of complex factors varied from, in the design may also vary. For example, in the 1990s, American Dynapath system by platelet structure, small thermal deformation, replacement and combined with a flexible board for easy, and Japan FANUC system tend plate structure, reduce board connectors, for system reliability. However, no matter what kind of system, their basic principle and composition are very similar. General CNC system consists of three parts, namely, control system, servo system and position measurement system.