数控技术专业英语 (8)

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Characters
6 F . -
Words
F 2 7 5 . G 0 1 0
N 5
Block
N 5 G 0 1 Y - 6 . 4 8 F 2 7 5 . 0
Fig. 8-1 Typical word address programming format 典型的字地址编程格式
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The following terminology is important when using the word address format. 在使用字地址格式时以下术语很重要。
程序字符 字符是CNC程序中最小的单元。它有三种表示形式： 数字、字母、符号 字符之间相互组合成有意义的程序字，这个由数字、字母 与符号组合而成的组合体就是所谓的编程字符。
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Address An ቤተ መጻሕፍቲ ባይዱddress is a letter that describes the meaning of the numerical value following the address. For example, the G in the codes G00 and the X in the codes X-3.75. 地址 地址是用于描述其后数值意义的一个字母。例如， 代码G00中的G和代码X-3.75中的X（都是地址）。
Unit 8
Word Address Programming
第8单元 字地址编程
Reading Target
After
reading this unit, you should be able to understand the format of CNC program.
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A CNC program is composed of a series of sequential instructions related to the machining of a part. Each instruction is specified in a format the CNC system can accept, interpret and process. Various controls have a different format, The format to be used in this text is known as the word address. It was originally developed for use with NC tapes and has been retained for CNC programming. CNC程序由一系列与加工零件相关的连续指令构 成。程序中的每个指令都遵循特定的格式， CNC系 统接受、编译并执行这种格式。不同控制系统采用的 格式不同，本文中将介绍字地址编程格式。最初，它 是为了和数控纸带配套使用而开发出来的，CNC将该 编程方式保留了下来。
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Block
A block is a complete line of information to the CNC machine. It is composed of one word or an arrangement of words. Blocks may vary in length. Thus, the programmer need only include in a block those words required to execute a particular machine function. 程序段 对于CNC机床来说，一个程序段就是一条完整的 信息，它由一个或多个程序字组成。程序段可长可短， 因此，要执行特定的机床功能，程序员只要在程序段 中写入需要的字即可。
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Character A character is the smallest unit of CNC program. It can have one of three forms: Digit Letter Symbol Characters are combined into meaningful words. This combination of digits, letters and symbols is called the alphanumeric program input.
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The word address format is based on a combination of one letter and one or more digits, see Figure 8-1. The word address refers to a specific register of the control memory. Some typical words are: G01 M30 D25 X5.75 N105 HOI YO S2500 Z-5.14 F12.0 T0505 T05 /M01 B180.0 字地址格式基于单个字母和一个或多个数字的结合。 请参考图8-1.一个字地址就是指控制器的内存中一个特 定的寄存器。一些典型的字如下： G01 M30 D25 X5.75 N105 HOI YO S2500 Z-5.14 F12.0 T0505 T05 /M01 B180.0
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Word
Characters are used to form words. Program words are composed of two main parts: an address followed by a number. Words are used to describe such important information as machine motions and dimensions in programs. 程序字 程序字由字符组成，它主要由两部分组成：地址 及紧随其后的数字。程序字用于描述程序中机床的运 动和尺寸等重要信息。