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回复：如何统计寄存器中位值位1的数量

KITT

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注册时间：2013-06-15

黄金如何晋级?

发布于 2016-05-13 20:12:06

5楼

以下生成的S7源程序我是通过STEP7做了一个FC来实现一个双字记录位的个数，你可以依照这个思路在200中也可以实现这种简单的方式取位个数。

FUNCTION "Count_Bit" : VOID
TITLE =
VERSION : 0.1

VAR_INPUT
In_Dword : DWORD ;
END_VAR
VAR_OUTPUT
Out_Count : INT ;
END_VAR
VAR_TEMP
DWord_Bit : ARRAY [0 .. 31 ] OF BOOL ;
TMP_Count : INT ;
END_VAR
BEGIN
NETWORK
TITLE =

      L     0;
      T     #Out_Count;
      T     #TMP_Count;
      L     #In_Dword;
      T     LD     0;

      A     #DWord_Bit[0];
      JNB   W000;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W000: NOP   0;
      A     #DWord_Bit[1];
      JNB   W001;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W001: NOP   0;
      A     #DWord_Bit[2];
      JNB   W002;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W002: NOP   0;
      A     #DWord_Bit[3];
      JNB   W003;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W003: NOP   0;
      A     #DWord_Bit[4];
      JNB   W004;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W004: NOP   0;
      A     #DWord_Bit[5];
      JNB   W005;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W005: NOP   0;
      A     #DWord_Bit[6];
      JNB   W006;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W006: NOP   0;
      A     #DWord_Bit[7];
      JNB   W007;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W007: NOP   0;
      A     #DWord_Bit[8];
      JNB   W008;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W008: NOP   0;
      A     #DWord_Bit[9];
      JNB   W009;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W009: NOP   0;
      A     #DWord_Bit[10];
      JNB   W010;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W010: NOP   0;
      A     #DWord_Bit[11];
      JNB   W011;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W011: NOP   0;
      A     #DWord_Bit[12];
      JNB   W012;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W012: NOP   0;
      A     #DWord_Bit[13];
      JNB   W013;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W013: NOP   0;
      A     #DWord_Bit[14];
      JNB   W014;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W014: NOP   0;
      A     #DWord_Bit[15];
      JNB   W015;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W015: NOP   0;
      A     #DWord_Bit[16];
      JNB   W016;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W016: NOP   0;
      A     #DWord_Bit[17];
      JNB   W017;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W017: NOP   0;
      A     #DWord_Bit[18];
      JNB   W018;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W018: NOP   0;
      A     #DWord_Bit[19];
      JNB   W019;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W019: NOP   0;
      A     #DWord_Bit[20];
      JNB   W020;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W020: NOP   0;
      A     #DWord_Bit[21];
      JNB   W021;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W021: NOP   0;
      A     #DWord_Bit[22];
      JNB   W022;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W022: NOP   0;
      A     #DWord_Bit[23];
      JNB   W023;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W023: NOP   0;
      A     #DWord_Bit[24];
      JNB   W024;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W024: NOP   0;
      A     #DWord_Bit[25];
      JNB   W025;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W025: NOP   0;
      A     #DWord_Bit[26];
      JNB   W026;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W026: NOP   0;
      A     #DWord_Bit[27];
      JNB   W027;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W027: NOP   0;
      A     #DWord_Bit[28];
      JNB   W028;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W028: NOP   0;
      A     #DWord_Bit[29];
      JNB   W029;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W029: NOP   0;
      A     #DWord_Bit[30];
      JNB   W030;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W030: NOP   0;
      A     #DWord_Bit[31];
      JNB   W031;
      L     #TMP_Count;
      L     1;
      +I    ;
      T     #TMP_Count;
W031: NOP   0;