REPLACE

Function - Replace characters in a string.

Inputs

IN : STRING   Character string
STR : STRING  String containing the characters to be inserted
              in place of NDEL removed characters
NDEL : DINT   Number of characters to be deleted before insertion of STR
POS : DINT    Position where characters are replaced (first character position is 1)

Outputs

Q : STRING   Modified string.

Remarks

The first valid character position is 1. 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 first input (the string) must be loaded in the current result before calling the function. Other arguments are operands of the function, separated by comas.

ST Language

Q := REPLACE (IN, STR, NDEL, POS);

FBD Language

ReplaceFbd.gif (1540 octets)

LD Language

(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)
ReplaceLd.gif (1762 octets)

IL Language:

Op1: LD      IN
     REPLACE STR, NDEL, POS
     ST      Q

See also

+   MLEN   DELETE   INSERT   FIND   LEFT   RIGHT   MID