块结构和块编辑ppt课件

1、Date:2022-5-9File:Blocks.1SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives块构造和块编辑块构造和块编辑OB 1FBFCFBFBFBFBFCFBFCDate:2022-5-9File:Blocks.2SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives目的学习了本章之后，他将学习了本章之后，他将 .了解不同类型的了解不

2、同类型的S7块块.懂得懂得“构造化编程的原理构造化编程的原理 .了解过程映像的意义了解过程映像的意义(PII, PIQ).可以解释循环程序执行的原理可以解释循环程序执行的原理.了解并可以选择了解并可以选择STEP7编程言语编程言语 - LAD, FBD 和和 STL .可以运用可以运用LAD/STL/FBD编辑器编辑、存盘并下装编辑器编辑、存盘并下装S7逻辑块到逻辑块到CPU.可以用可以用“块监视测试功能进展简单程序调试块监视测试功能进展简单程序调试.可以设置可以设置LAD/STL/FBD编辑器编辑器Date:2022-5-9File:Blocks.3SIMATIC S7Siemens AG

3、2003. All rights reserved.SITRAIN Training for Automation and Drives缺点 OB组织块组织块循环定时过程程序块类型程序块类型操作系统FCSFCFB 带背景数据块图例:OB = 组织块FB = 功能块FC = 功能SFB = 系统功能块SFC = 系统功能 DB= 数据块FBFCFBFBDBDBSFB最大嵌套深度:S7-300:8(16对CPU 318)S7-400:24(2 至 4 个附加级给缺点 OB, 对每一个优先级)Date:2022-5-9File:Blocks.4SIMATIC S7Siemens AG 2003. A

4、ll rights reserved.SITRAIN Training for Automation and Drives程序构造程序构造分块程序分块程序构造化程序构造化程序一切的指令都放在一个一切的指令都放在一个块中块中 (通常是组织块通常是组织块OB 1) 单一功能的指令放在单一的块单一功能的指令放在单一的块中，中，OB1调用这些单独的块调用这些单独的块可反复运用的功能装入单个块中，OB 1 (或其他块) 调用这些块并传送相关数据。OB 1OB 1Recipe ARecipe BMixerOutletOB 1PumpOutlet线性化程序线性化程序Date:2022-5-9File:Blo

5、cks.5SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives过程映象过程映象字节 0字节 1字节 2:CPU存储器区字节 0字节 1字节 2: PIIPIQ 用户程序CPU存储器区 : :A I2.0= Q4.3 : : : :11I 2.0S 1K 1Q 4.3Date:2022-5-9File:Blocks.6SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation

6、 and Drives循环程序执行循环程序执行执行OB1中的程序 (循环执行)事件 (日期时间中断、硬件中断等) 调用其他 OB，FB，FC输出模块A I 0.1A I 0.2= Q4.0块OB 1循环监视时间的开场启动块 (OB 100)上电后执行一次从模块读信号形状，并保管到过程映象区 (PII)把过程映象输出表(PIQ) 写到输出模块CPU 循环循环输入模块Date:2022-5-9File:Blocks.7SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives插入

7、插入S7 S7 块块Date:2022-5-9File:Blocks.8SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and DrivesLAD/STL/FBD编辑器编辑器声明表声明表代码部分代码部分细节窗口细节窗口Date:2022-5-9File:Blocks.9SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and DrivesSTEP7 编程言语编程言语AI 0.0A

8、I 0.1= Q8.0STL&Q8.0=I 0.0I 0.1FBDI 0.0I 0.1Q8.0LADDate:2022-5-9File:Blocks.10SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives选择编程言语选择编程言语Date:2022-5-9File:Blocks.11SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives用用

9、 LAD/FBD 编程编程Date:2022-5-9File:Blocks.12SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives用用 STL 编程编程Date:2022-5-9File:Blocks.13SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives块的保管块的保管带有块称号的当前工程途径Date:2022-5-9File:Blocks

10、.14SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives在在OB1中调用块中调用块Date:2022-5-9File:Blocks.15SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives下载块到下载块到 PLC Date:2022-5-9File:Blocks.16SIMATIC S7Siemens AG 2003. All rights r

11、eserved.SITRAIN Training for Automation and Drives简单程序调试简单程序调试Date:2022-5-9File:Blocks.17SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives下载和保管修正的块下载和保管修正的块翻开在线保管下载翻开离线Date:2022-5-9File:Blocks.18SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training f

12、or Automation and Drives练习练习: 电机点动电机点动 (FC 16)Date:2022-5-9File:Blocks.19SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives练习练习:在在 OB 1中调用中调用 FC 16Date:2022-5-9File:Blocks.20SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Driv

13、es假设他想知道更多假设他想知道更多Date:2022-5-9File:Blocks.21SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives编辑器用户设置：编辑器用户设置：“General标签标签Date:2022-5-9File:Blocks.22SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives编辑器用户设置：编辑器用户设置：“View标

14、签标签Date:2022-5-9File:Blocks.23SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives编辑器用户设置：编辑器用户设置：“STL标签标签Date:2022-5-9File:Blocks.24SIMATIC S7Siemens AG 2003. All rights reserved.SITRAIN Training for Automation and Drives编辑器用户设置：编辑器用户设置：“LAD/FBD标签标签Date:2022-5-9File:Blocks.25SIMATIC S7Siemens AG 2003. All rights reserved.