CountOf
Function - Returns the number of items in an array.
Inputs
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Input |
Data type |
Description |
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ARR |
ANY |
Declared array. |
Outputs
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Output |
Data type |
Description |
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Q |
DINT |
Total number of items in the array. |
Remarks
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.
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FOR i := 1 TO CountOf (MyArray) DO |
In LD 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.
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Array |
Return |
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Arr1 [ 0..9 ] |
10 |
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Arr2 [ 0..4 , 0..9 ] |
50 |
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ST Language
Q := CountOf (ARR);
FBD Language
LD Language
The function is executed only if EN is TRUE.
ENO keeps the same value as EN.
CountOf |
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IEC 61131-3 Automation platform > Programming - Reference guide > Basic Operations > CountOf |
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