西門子PLC指針尋址教學.ppt

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STEP 7 中可能的尋址方式   …..........................................................................................  2
變量直接尋址  ……...............................................................................................  3
DB中地址標識符直接尋址  ................................................................................  4
在程序中分析DB信息   ....................................................................................  5
存儲器間接尋址  ….....................................................................................................  6
用于存儲器間接尋址的指針結構  .................................................................  7
存儲器間接尋址的特性  ……..................................................................  8
間接尋址示例  ….................................................................................................  9
練習4.1：用間接尋址的方法進行循環編程  ……..................................................  10
內部區域，寄存器間接尋址  ……............................................................................  11
交叉區域，寄存器間接尋址  …………...................................................................  12
用于裝載地址寄存器的指令  ................................................................................  13
其它用于地址寄存器的指令  ....................................................................................  14
寄存器間接尋址的特性  ….....................................................................  15
練習4.2：用寄存器間接尋址的方法進行循環編程  …….....................................  16
POINTER類型和ANY類型數據的塊參數   .................................................................  17
POINTER類型的結構和參數賦值  ...................................................................  18
ANY數據類型的結構  .................................................................................................  19
ANY數據類型參數賦值  …….......................................................................  20
ANY參數類型間接賦值  ……................................................................  21
評估ANY型指針傳遞  ……………...............................................................................  22
練習4.3：用于求和及計算平均值的功能  …..................................................  23

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