一、前言采用多微机分布式处理取代单个计算机的集中控制,已成为机床数控的一个发展方向。多微机分布处理,就是将所有的处理工作分配给两个以上的微处理机分担,各微处理机同时而又协调地完成各自的操作。一般可将数控装置分为主控、伺服、显示和顺序处理四部分。各部分的功能分别由不同的微处理机来承担。这样的工作方式具有许多优点: I. INTRODUCTION The centralized control that replaces the single computer by multi-computer distributed processing has become a development direction of machine tool numerical control. Multi-microcomputer distributed processing, that is, all the processing work assigned to more than two microprocessors shared, the microprocessor at the same time and coordinated completion of their respective operations. CNC devices can be divided into general master, servo, display and order processing four parts. Each part of the function by different microprocessors to bear. This way of working has many advantages: