How To Add Multiple Datawords Together

[b16mcc]

Hi guys. I'm trying to do something that's probably really easy when you know how, but I don't.
I have a datablock that has 60 data words in it, all in INT format.
I simply want to add together the values of the first 16 datawords.
I'm using an S7-313C 2DP.
Any tips please? Thanks.

[aldo_humax]

U can use pointer and loop.

Code: Select all

...
L 0  
T counter //init of counter variable (better not a temp variable) - INT
T Totale   //init of total value variable (better not a temp variable) - DINT
Loop: nop 0
L counter //preparation of pointer by the counter
L 2
*I
SLW 3
LAR1
AUF DB xxx //open your datablock
L DBW[AR1,P#0.0] //load the value through the pointer
ITD //convert to double int
L Total //and add to your total variable
+D
T Total
L counter //increment the counter
+ 1
T counter
L 16 //stop the loop after 16 times
<I
Spb Loop
...