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第一节适合于可编程调节器的语言一、过程控制用语言概述为了便于人机对话,人们已研制了各种计算机操作系统和相应的软件系统,并在其上开发了各种形式的浯言。一般用于过程控制的语言有三种:面向机器语言、面向过程语言和面向问题语言。面向机器语言(Machine-orierted Language),亦称汇编语言,是一种面向特定机或机种系列的程序设计语言。其指令和机器语言指令是一对一的关系,因而具有控制速度快、与外围设备接口灵活等优点。但其程序设计难度较大,不易掌握,影响了
The first section is suitable for the programmable controller language First, the process control language overview In order to facilitate the man-machine dialogue, people have developed a variety of computer operating systems and the corresponding software system, and developed on it a variety of forms Words. There are three general types of languages for process control: machine language, process-oriented languages, and problem-oriented languages. Machine-orierted Language, also known as assembly language, is a programming language for a specific set of machines or models. The instructions and machine language commands are one-to-one relationship, which has the advantages of fast control, flexible interface with peripherals and so on. But its programming is difficult, not easy to grasp, affected