编写机器指令，测试、调试及集成程序。文件化整个系统及开发数据控制程序。
Write machine instructions, test, debug, and assemble program. Document overall system and develop data control procedures.
研究目的：通过对几个PLC控制程序的分析，使读者了解PLC程序的基本指令、控制方式和编程思想，初步掌握PLC的编程方法。
Research purposes: the purpose was to make readers to learn the basic instruction, control way, programming concept and programming method through the analysis of several control programmes of PLC.
通过比较，指出了S/R指令和步进指令在设计PLC顺序控制程序时所具有的不同特点。
The different characteristics between S/R instruction and Step Ladder instruction (STL) for designing sequential control program of PLC are putted forward passing through comparison.
程序设计语言采用AT 89 C51单片机自带的精简汇编指令，并对所有控制程序给出详细的说明。
The reduced compiled instructions of AT89C51 were adopted as programming language, and the detailed explanations of programs were given.
该系统的代理接收导调控制程序的脚本指令，并通过邮槽实现与该终端内各指控系统软件的进程间通信。
The control agent disposes in the emulation terminal receives script codes from control software and implement Inter Procedure Communication (IPC) with command control software in each terminal.
该系统的代理接收导调控制程序的脚本指令，并通过邮槽实现与该终端内各指控系统软件的进程间通信。
The control agent disposes in the emulation terminal receives script codes from control software and implement Inter Procedure Communication (IPC) with command control software in each terminal.
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