String functions either act on or return strings.
These IEC 61131-3 standard string functions are supported:
Function | Explanation |
---|---|
LEN | Return the length of a string. |
LEFT | Return the left part of a string. |
RIGHT | Return the right part of a string. |
MID | Return the center part of a string. |
CONCAT | Add together (concatenate) two or more strings. |
INSERT | Insert one string into another string. |
DELETE | Delete part of a string. |
REPLACE | Replaces part of one string with another string. |
FIND | Finds the location of one string within another. |
IEC 61131-3 Second Edition: Table 29.
IEC 61131-3 Third Edition: Table 34.
These functions that extend the IEC 61131-3 standard are also supported:
Function | Explanation |
---|---|
CODE_POINT_AT | Returns the Unicode code point at a position of a string. |
GET_ELEMENT | Return an element of a string. |
LOWER | Return a string converted to lower case characters. |
TRIM | Removes whitespace characters from a string. |
UPPER | Return a string converted to upper case characters. |
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