1打开step7软件SIMATICManager,新建名为“today”的项目,如下图2若要进行仿真,即在项目名称上插入新对象-S7程序。(仿真无需硬件组态)聲卞S-IL/IATICManager-today口WI晶宣新Ifg-IZ44=(E)SgztEj痣入PLCIHLKtVi&JmtO)渐口tW)帮SblH)裁|weE盼-today-C:ProgramFilers96)SIEMESSIMATIC:.NC:M-7projModayEl百-固ST程库(1:回海交件-块3在“块”中双击打开0B1,选择LAD梯形图进行编程。事$S1IVIATICManager-today文彳电FJ褊辐(曰撞入(IJPLC:视圉N3(0)窗匚空丄藉助HJ8丨醫孚縛|晶哲佩丨世丨国一丨R旦二匚三二耋|回|伍过於today-匚:ProgramFile-sCx&5)SIEIY1ENSS1MATIC.NC-IYIAa7projtodayEl-toddj-l=l-7jST程序riii