How to find a length and used elements in array structured text

Question

Array_Length_u8:=SIZEOF(SkippedElements_au8)/ SIZEOF(SkippedElements_au8[0]);

I am using this formula to find the array length but its doesn't execute and always showing 256 as result

Is this array of structures? pointers? Strings? – Sergey Romanov Nov 06 '20 at 05:07 — Sergey Romanov, Nov 06 '20 at 05:07
Show definition of `SkippedElements_au8` – Sergey Romanov Nov 09 '20 at 06:01 — Sergey Romanov, Nov 09 '20 at 06:01

score 0 · Answer 1 · answered Nov 09 '20 at 06:28

0

You want to use LOWER_BOUND and UPPER_BOUND. For example:

ArraySize : DINT;
ThisIsAnArray : ARRAY[1..10] OF DINT;
ArraySize := ABS(UPPER_BOUND(ThisIsAnArray, 1) - LOWER_BOUND(ThisIsAnArray, 1)) + 1;

answered Nov 09 '20 at 06:28

Jakob

1 Answers1