LEFT

Function - Extract characters of a string on the left.

Inputs

Input	Data type	Description
IN	STRING	Character string.
NBC	DINT	Number of characters to extract.

Outputs

Output	Data type	Description
Q	STRING	String containing the first NBC characters of IN.

Remarks

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.

ST Language

Q := LEFT (IN, NBC);

FBD Language

Fixed_Image

LD Language

The function is executed only if EN is TRUE.
ENO keeps the same value as EN.

Fixed_Image