ATOH

Function - Converts string to integer using hexadecimal basis

Inputs

IN : STRING String representing an integer in hexadecimal format

Outputs

Q : DINT Integer represented by the string

Truth table (examples)

IN	Q
''	0
'12'	18
'a0'	160
'A0zzz'	160

Remarks

The function is case insensitive. The result is 0 for an empty string. The conversion stops before the first invalid character. 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. In IL, the input must be loaded in the current result before calling the function.

ST Language

Q := ATOH (IN);

FBD Language

LD Language

(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)

IL Language:

Op1: LD IN
ATOH
ST Q