文档介绍：硬件组态              选择数据格式              Step7中的编程 创建数据块DB1    说明:   (参数区)读写参数时调用SFC14和SFC15   (“DPRD_DAT”)用于读Profibus从站的数据   (“DPWR_DAT”)用于将数据写入Profibus从站   #16#100(即256)是硬件组态时PKW的起始地址 程序举例1      注:PKW,IND的详细说明见附录    #16#100(即256)是硬件组态时PKW的起始地址   (P#)                    PKE->                    IND->                   PWE1->                   PWE2->   (P#)                     ->PKE                     ->IND       ->PWE1       ->PWE2    注:PKW,IND的详细说明见附录 Top 程序举例2(读参数数组的数值)      注:PKW,IND的详细说明见附录    #16#100(即256)是硬件组态时PKW的起始地址   (P#)                   PKE->                   IND->                  PWE1->                  PWE2->   (P#)                     ->PKE                     ->IND       ->PWE1       ->PWE2    注:PKW,IND的详细说明见附录Top 程序举例3(读须置位参数页的参数)      注:PKW,IND的详细说明见附录    #16#100(即256)是硬件组态时PKW的起始地址   (P#)                    PKE->                    IND->                   PWE1->                   PWE2->   (P#)                     ->PKE                     ->IND       ->PWE1       ->PWE2    注:PKW,IND的详细说明见附录Top