一、引言所谓一个测试系统,是有几台或几十台仪器(称为器件)组建而成的,其中也包括负责作管理及控制用的计算机、程序控制器或母线测量仪等.它们是通过一条称为标准接口母线系统联接起来的.通过母线可以使各台仪器互相通信及应答,传递消息及数据,而代替人工操作.为了使整个系统能按照人的意志工作,这些器件中必有一台作为控制用,称为“控者”.它可以由人操作或根据预编的程序,命令其他器件,准备什么 I. INTRODUCTION The so-called test system is composed of several or dozens of instruments (called devices), including computers, program controllers or bus gauges responsible for management and control, etc. They are Through a bus interface known as the standard interface connected through the bus can make each device communicate with each other and respond to the transmission of information and data instead of manual operation in order for the entire system to work in accordance with the will of the people, The console is called a “controller.” It can be operated by a human or ordered according to a preprogrammed program, ordered by other devices, and prepared