S5转S7时，S5中的DB0如何处理？

刘玉蓉发布于2014-10-21 17:19 85 0 标签：

现有一个S5程序，要转换成S7程序，可其中用到了DB0,这个如何处理？
下面的是相关的程序：
FUNCTION FC 16 : VOID
  AUTHOR: _991
  NAME: SPEICHER
  BEGIN
  NETWORK
  NETWORK
       A   M 8.7;
       A   M 247.1;
       S   M 93.1;
       JC  M001;
       JU  M002;
  M001:NOP 0;
       OPN DB 221;
       L   W#16#0;
       T   DBW 6;
       T   DBW 8;
       T   DBW 10;
  M002:NOP 0;
       AN  M 8.7;
       AN  M 247.1;
       R   M 93.1;
  NETWORK
       O   M 94.2;
       O   M 94.3;
       O   M 94.4;
       O   M 94.5;
       O   M 93.1;
       =   M 91.0;
  NETWORK
       O   M 91.0;
       O(;
       AN  M 169.0;
       AN  M 169.1;
       AN  M 169.2;
       AN  M 169.3;
       AN  M 169.4;
       AN  M 169.5;
       );
       JC  M003;
       OPN DB 221;
       NOT;
       S   DBX 10.6;
       NOT;
       S   DBX 10.6;
       BEU;
  M003:NOP 0;
       OPN DB 221;
       NOT;
       R   DBX 10.6;
       NOT;
       R   DBX 10.6;
  NETWORK
       L   MB 8;
       L   W#16#82;
       <>I;
       JC  M004;
       //;
       A   M 91.0;
       JC  M004;
       //;
       A   M 9.0;
       JC  M005;
       OPN DB 221;
       NOT;
       S   DBX 10.3;
       NOT;
       S   DBX 10.3;
       JU  M004;
  M005:NOP 0;
       OPN DB 221;
       NOT;
       R   DBX 10.3;
       NOT;
       R   DBX 10.3;
       AN  M 91.0;
       S   M 94.2;
  M004:NOP 0;
  NETWORK
       L   MB 8;
       L   W#16#83;
       <>I;
       JC  M006;
       //;
       A   M 91.0;
       JC  M006;
       //;
       A   M 9.0;
       JC  M007;
       OPN DB 221;
       NOT;
       S   DBX 10.3;
       NOT;
       S   DBX 10.3;
       JU  M006;
  M007:NOP 0;
       OPN DB 221;
       NOT;
       R   DBX 10.3;
       NOT;
       R   DBX 10.3;
       AN  M 91.0;
       S   M 94.3;
  M006:NOP 0;
  NETWORK
       L   MB 8;
       L   W#16#84;
       <>I;
       JC  M008;
       //;
       A   M 91.0;
       JC  M008;
       //;
       A   M 9.0;
       JC  M009;
       OPN DB 221;
       NOT;
       S   DBX 10.3;
       NOT;
       S   DBX 10.3;
       JU  M008;
  M009:NOP 0;
       OPN DB 221;
       NOT;
       R   DBX 10.3;
       NOT;
       R   DBX 10.3;
       AN  M 91.0;
       S   M 94.4;
  M008:NOP 0;
  NETWORK
       L   MB 8;
       L   W#16#85;
       <>I;
       JC  M010;
       //;
       A   M 91.0;
       JC  M010;
       //;
       A   M 9.0;
       JC  M011;
       OPN DB 221;
       NOT;
       S   DBX 10.3;
       NOT;
       S   DBX 10.3;
       JU  M010;
  M011:NOP 0;
       OPN DB 221;
       NOT;
       R   DBX 10.3;
       NOT;
       R   DBX 10.3;
       AN  M 91.0;
       S   M 94.5;
  M010:NOP 0;
  NETWORK
       A   M 94.2;
       JCN   X000;
     CALL FC 17
        ( ANZ    :=  160
        , LAEN   :=  90
        , STRT   :=  M 94.2
        );
  X000: NOP 0;
       //;
       A   M 94.3;
       JCN   X001;

问题补充：
CALL FC 18
        ( ANZ    :=  160
        , LAEN   :=  90
        , FBBA   :=  FC 31
        , FBSW   :=  FC 27
        , FBTW   :=  FC 14
        , FBSK   :=  FC 29
        , FBTK   :=  FC 28
        , STK    :=  M 0.0
        , FBST   :=  DB 0
        , BLH    :=  M 0.0
        , FBBH   :=  DB 0
        , LOB    :=  M 0.0
        , FBLO   :=  DB 0
        , EBRV   :=  M 0.0
        , FBEB   :=  DB 0
        , RES1   :=  M 0.0
        , FBR1   :=  DB 0
        , RES2   :=  M 0.0