How to put input in memory???

[kaveh_henry]

Hi, I have an exercise about calculate average 10 Real input by using pointer for addressing, the problem is first I should put thess inputs in 10 memory, but when the first input come, it's going to md4, and when the second input come, the first input go from md4 to md8, and new input going to md4 and...
how should I write this in STL ???
thx.

 

[MorphuisOGrady]

Are you using a Siemens plc to begin with?

 

[kaveh_henry]

Are you using a Siemens plc to begin with?

yes, and want to learn how programming with STL.

 

[L D[AR2P#0.0]]

Here's something to get you going. All named variables are temp variables.

rName=REAL
dwName=DWORD
iName=INT

      A     M    255.4; //mb255 =clock byte in cpu properties
      FP    M    254.0; 
      JCN   skip; 
      L     0.000000e+000; 
      T     #rSum; //zero sum
      L     P#4.0; 
      NEGD  ; 
      T     #dwDec; //to allow AR1 to be decremented
      L     10; //no of entries in filter
      T     #iNumberOfElements; 
      T     #iCount; 
      LAR1  P#M 4.0; //start of filter store, MD4
      L     #iCount; 
      +     -2; 
      L     P#4.0; 
      *D    ; 
      +AR1  ; //start read of (icount-1)th element 
      L     #iCount; 
      +     -1; 
L:    T     #iCount; 
      L     D [AR1,P#0.0]; //ripple down values
      T     D [AR1,P#4.0]; 
      L     #rSum; 
      +R    ; 
      T     #rSum; 
      L     #dwDec; 
      +AR1  ; 
      L     #iCount; 
      LOOP  L; 
      L     MD   100; //new value assumed to be in MD100
      T     D [AR1,P#4.0]; 
      L     #rSum; 
      +R    ; 
      L     #iNumberOfElements; 
      ITD   ; 
      DTR   ; 
      /R    ; 
      T     MD   104; //average shown in MD104
skip: NOP   0;