s7-300400 系统、维护与编程综合课程a7111serv1_08c_symbols

1、符号SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.1SITRAIN Training for Automation and Drives目标学习了本章之后，你将 .了解绝对地址和符号地址之间的差别.了解局部符号和全局符号之间的差别.了解符号优先和绝对地址优先之间的差别.能够编辑全局符号表.能够从LAD/STL/FBD编辑器编辑全局符号SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.2SITR

2、AIN Training for Automation and Drives绝对寻址和符号寻址AI 0.0=Q4.1AI 0.4=Q8.5CallFC18AT_System_ON=L_SYSTEMAS_M/A_ModeSelect=K_RTCallFC_Count(最多 24 个字符)(最多 80 个字符)SymbolAddressData TypeCommentK_RTQ8.5BOOLRun Conveyor RightFC_CountFC18FC18Count Transported PartsT_System_ONI 0.0BOOLSystem ON Switch, Momentary

3、ContactL_SYSTEMQ4.1BOOLSystem ON LightS_M/A_ModeSelectI 0.4BOOLOperating Mode Man=0/Auto=1 Selector SwitchSIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.3SITRAIN Training for Automation and Drives符号寻址 - 概述何处使用符号?它们存放在何处?如何建立它们?全局数据:- 输入- 输出- 位存储器、定时器、计数器- 外设 I/O符号表符号编辑器局部

4、数据块:块的声明表程序编辑器- 块参数- 局部 /临时数据跳转标号块的代码区程序编辑器块名称:- OB- FB- FC- DB- VAT- UDT符号表符号编辑器数据块组成DB的声明表程序编辑器SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.4SITRAIN Training for Automation and Drives符号表双击SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.5SITR

5、AIN Training for Automation and Drives编辑：查找与替换SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.6SITRAIN Training for Automation and Drives查看：过滤器SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.7SITRAIN Training for Automation and Drives查看：排序SIMATIC

6、 S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.8SITRAIN Training for Automation and Drives在 LAD/STL/FBD 编辑器中编辑符号SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.9SITRAIN Training for Automation and Drives在 LAD/STL/FBD 编辑器中符号信息SIMATIC S7Siemens AG 2003.

7、All rights reserved.Date:30.09.2018File:Symbols.10SITRAIN Training for Automation and Drives在 LAD/STL/FBD 编辑器中符号选择SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.11SITRAIN Training for Automation and Drives练习：为Conveyor Model建立符号表SIMATIC S7Siemens AG 2003. All rights reserv

8、ed.Date:30.09.2018File:Symbols.12SITRAIN Training for Automation and Drives如果你想知道更多SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.13SITRAIN Training for Automation and Drives要把表存到何处 ?符号表：导出SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.14把表存成何种格式?SITRAIN Training for Automation and Drives符号表：导入这里选择目录路径输入文件名选择格式SIMATIC S7Siemens AG 2003. All rights reserved.Date:30.09.2018File:Symbols.15SITRAIN Training for Automation and Drives符号优先优先： 绝对地址Symbol Table Old Entry:System ON = Q8.0New Entry:Sy