LEN¶

Returns the length of a string.

Signature¶

    ┌─────────┐
IN ─┤   LEN   ├─ OUT
    └─────────┘

FUNCTION LEN : ANY_INT
  VAR_INPUT
    IN : ANY_STRING;
  END_VAR
END_FUNCTION

Returns INT. LEN accepts STRING.

Inputs

Name	Type	Description
`IN`	`ANY_STRING`	The string to measure.

Outputs

Name	Type	Description
Return value	`INT`	The number of characters in IN. Zero for an empty string.

Returns the number of characters in IN. For an empty string, the result is 0.

Try it

Source

result := LEN('Hello');    (* result = 5 *)
result := LEN('');         (* result = 0 *)