西门子STL程序转换LAD程序

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文档类型：问题类别：产品选型问题类别：产品使用问题类别：故障诊断

有段程序用STL写的，但是我有些地方看不懂，想用梯形图来表达，不知道怎么表达出来，想让大神们指点一下。
      A     "1#动作DB".无胚
      FP    "DBs_recoreBP".P[61]
      O(
      A     "2#动作DB".无胚
      FP    "DBs_recoreBP".P[62]
      )
      O(
      A     "3#动作DB".无胚
      FP    "DBs_recoreBP".P[63]
      )
      O(
      A     "4#动作DB".无胚
      FP    "DBs_recoreBP".P[64]
      )
      O(
      A     "5#动作DB".无胚
      FP    "DBs_recoreBP".P[65]
      )
      O(
      A     "6#动作DB".无胚
      FP    "DBs_recoreBP".P[66]
      )

      =     #"L2.0"
      A     #"L2.0"
      JNB   A
      L     W#16#1
      L     "DBs_recoreBP".BPstation
      SLD
      T     "DBs_recoreBP".BPstation
A:    NOP 0
      A     #"L2.0"
      A     "状态数据".模具相关.启动
      A(
      A(
      A     "DBs_recoreBP".BPstation.%X5
      AN    "DBs_recoreBP".BPstation.%X6
      AN    "DBs_recoreBP".BPstation.%X7
      A(
      L     "DBs_recoreBP".GROAGO
      L     1
      >=I
      )
      O
      A     "DBs_recoreBP".BPstation.%X4
      AN    "DBs_recoreBP".BPstation.%X5
      AN    "DBs_recoreBP".BPstation.%X6
      A(
      L     "DBs_recoreBP".GROAGO
      L     2
      >=I
      )
      O
      A     "DBs_recoreBP".BPstation.%X3
      AN    "DBs_recoreBP".BPstation.%X4
      AN    "DBs_recoreBP".BPstation.%X5
      A(
      L     "DBs_recoreBP".GROAGO
      L     3
      >=I
      )
      )
      AN    "AlwaysFALSE"
      O
      A     "AlwaysFALSE"

      AN    "DBs_recoreBP".BPstation.%X4
      AN    "DBs_recoreBP".BPstation.%X5
      A     "DBs_recoreBP".BPstation.%X6
      A(
      L     "DBs_recoreBP".GROLAT
      L     2
      >=I
      )
      O
      AN    "DBs_recoreBP".BPstation.%X5
      AN    "DBs_recoreBP".BPstation.%X6
      A     "DBs_recoreBP".BPstation.%X7
      A(
      L     "DBs_recoreBP".GROLAT
      L     1
      >=I
      )
      )
      AN    "DBs_recoreBP".PBBP
      S     "DBs_recoreBP".GROBP