ARR : ANY Declared array
Q : DINT Total number of items in the array
The input must be an array and can have any data type. This function is particularly useful to avoid writing directly the actual size of an array in a program, and thus keep the program independent from the declaration. Example:
FOR i := 1 TO CountOf (MyArray) DO
MyArray[i-1] := 0;
END_FOR;
In FFLD language, the operation is executed only if the input rung (EN) is TRUE. The output rung (ENO) keeps the same value as the input rung.
Examples
| array | return |
|---|---|
| Arr1 [ 0..9 ] | 10 |
| Arr2 [ 0..4 , 0..9 ] | 50 |
Q := CountOf (ARR);
(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)
Not available
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