Function - Replace characters in a string.
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)
Q : STRING Modified string.
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.
Q := REPLACE (IN, STR, NDEL, POS);
(* The function is executed only if EN is
TRUE *)
(* ENO keeps the same value as EN *)
Op1:
LD IN
REPLACE STR, NDEL, POS
ST Q