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Date:19.10.24File:Symbols.1SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives符号Date:19.10.24File:Symbols.2SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives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Date:19.10.24File:Symbols.3SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives绝对寻址和符号寻址AI0.0=Q4.1AI0.4=Q8.5CallFC18A"T_System_ON"="L_SYSTEM"A"S_M/A_ModeSelect"="K_RT"Call"FC_Count"(最多80个字符)SymbolAddressDataTypeCommentK_RTFC_CountT_System_ONL_SYSTEMS_M/A_ModeSelectQ8.5FC18I0.0Q4.1I0.4BOOLFC18BOOLBOOLBOOLRunConveyorRightCountTransportedPartsSystemONSwitch,MomentaryContactSystemONLightOperatingModeMan=0/Auto=1SelectorSwitch(最多24个字符)Date:19.10.24File:Symbols.4SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives局部数据块: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:符号表符号编辑器-输入-输出-位存储器、定时器、计数器-外设I/O数据块组成DB的声明表程序编辑器块名称:符号表符号编辑器-OB-FB-FC-DB-VAT-UDTDate:19.10.24File:Symbols.5SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives符号表双击Date:19.10.24File:Symbols.6SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives编辑：查找与替换Date:19.10.24File:Symbols.7SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives查看：过滤器Date:19.10.24File:Symbols.8SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives查看：排序Date:19.10.24File:Symbols.9SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives在LAD/STL/FBD编辑器中编辑符号Date:19.10.24File:Symbols.10SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives在LAD/STL/FBD编辑器中符号信息Date:19.10.24File:Symbols.11SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives在LAD/STL/FBD编辑器中符号选择Date:19.10.24File:Symbols.12SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives练习：为ConveyorModel建立符号表Date:19.10.24File:Symbols.13SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives如果你想知道更多Date:19.10.24File:Symbols.14SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives符号表：导出要把表存到何处?把表存成何种格式?Date:19.10.24File:Symbols.15SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives符号表：导入这里选择目录路径输入文件名选择格式Date:19.10.24File:Symbols.16SIMATIC®S7SiemensAG2003.Allrightsreserved.SITRAINTrainingforAutomationandDrives"符号优先"优先：绝对地址优先：符号SymbolTableOldEntry:SystemON=Q8.0NewEntry:SystemON=Q4.0