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[PLC] IEC61131-3(PLC编程语言)说明 中文版

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emx 发表于 2024-2-5 00:29:24 | 显示全部楼层 |阅读模式
IEC61131-3(PLC编程语言)介绍.pdf (448.29 KB, 售价: 2 E币)

IEC 61131-3 标准 ...................................................................................3
一 IEC 61131-3 编程部分.............................................................................3
1.1.1 配置、资源、程序和任务...........................................................4
1.1.2 程序、功能块和功能 ...............................................................4
1.1.3 软件模型到实际系统的映射 .......................................................7
1.1.4 IEC 软件模型的优点 ...............................................................8
二 变量和存取路径 ....................................................................................9
2.1 标准数据类型................................................................................9
2.1.1 BOOL.................................................................................9
2.1.2 整型数据类型........................................................................9
2.1.3 REAL / LREAL....................................................................10
2.1.4 STRING............................................................................10
2.1.5 时间、日期类型...................................................................10
2.1.6 常数.................................................................................10
2.2 用户定义的数据类型......................................................................10
2.2.1 数组.................................................................................10
2.2.2 结构.................................................................................10
三 编程语言 .........................................................................................13
3.1 梯形图(LD-Ladder Diagram) ....................................................13
3.1.1 LD 背景.............................................................................13
3.1.2 IEC61131-3 的 LD 图形符号...................................................13
3.1.3 IEC61131-3 的 LD 编程 ........................................................13
3.1.4 ST、 FBD 及 LD 之间的可移植性...............................................14
3.2 顺序功能流程图(SFC-Sequential Function Chart) ...........................14
3.2.1 顺序功能流程图的基本概念 .....................................................14
3.2.2 顺序功能流程图(SFC)的几种主要形式.....................................14
3.2.3 顺序功能流程图(SFC)的程序执行 ..........................................15
3.2.4 对不安全的 SFC 的处理 .........................................................15
3.3 功能块图(FBD-Function Block Diagram) .....................................15
3.3.1 功能块图的信号流 ................................................................15
3.3.2 功能块网路设计...................................................................15
3.3.3 功能的执行控制...................................................................15
3.3.4 跳转和标注 ........................................................................16
3.3.5 功能块图应用实例 ................................................................16
2.4 指令表(IL-Instruction List) ........................................................16
3.4.1 指令表语言结构....................................................................16
3.4.2 指令表操作符......................................................................16
3.5 结构化文本(ST) .......................................................................16
3.5.1 操作符..............................................................................17
3.5.2 赋值语句 ...........................................................................17
3.5.3 在程序中调用功能块 ..............................................................17
3.5.4 结构化文本(ST)程序中的语句................................................17
3.5.6 编程举例:结构化文本(ST)程序 ............................................18
四 综合编程举例 .....................................................................................18

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