Omron WS02-CXPC1-V9 - V9 Operation Manual page 170

ST Language Configuration
Function Argument data type
EXPT (base, expo- Base
nent)
Exponent INT,
Text String Functions
Function
LEN(String)
LEFT(<Source_string>,
<Number_of_characters>)
RIGHT(<Source_string>,
<Number_of_characters>)
MID(<Source_string>,
<Number_of_characters>,
<Position>)
CON-
CAT(<Source_string_1>,<S
ource_string_2>,...) *Up to
32 source strings.*
INSERT(<Source_string>,
<Insert_string>,<Position>)
DELETE(<Source_string>,
<Number_of_characters>,
<Position>)
144
Return value
data type
REAL, REAL, LREAL
LREAL
DINT,
LINT,
UINT,
UDINT,
ULINT
Note The data type returned for numerical functions is the same as that used in the
argument. Therefore, variables substituted for function return values must be
the same data type as the argument.
The following functions can be used with CS/CJ-series CPU Units with unit
version 4.0 or later, or CJ2-series CPU Units.
Argument data type
String STRING
Source_ STRING
string
Number_of_ INT,
characters UINT
Source_ STRING
string
Number_of_ INT,
characters UINT
Source_ STRING
string
Number_of_ INT,
characters UINT
Position INT,
UINT
Source_ STRING
string
Source_ STRING
string
Insert_ STRING
string
Position INT,
UINT
Source_ STRING
string
Number_of_ INT,
characters UINT
Position INT,
UINT
Description
Exponential: Base
Return Description
value
data type
INT Detects the length
of a text string.
STRING Extracts charac-
ters from a text
string starting from
the left.
STRING Extracts charac-
ters from a text
string starting from
the right.
STRING Extracts charac-
ters from a text
string.
STRING Concatenates text
strings.
STRING Insert one text
string into another.
STRING Deletes characters
from a text string.
Section 5-4
Example
exponent a: = EXPT (b, c)
(*Exponential with variable b
as the base and variable c
as the exponent is stored in
variable a*)
Example
a: = LEN (b)
(*number of characters in string
b stored in variable a*)
a: = LEFT (b,c)
(*number of characters specified
by variable c extracted from the
left of text string b and stored in
variable a*)
a: = RIGHT (b,c)
(*number of characters specified
by variable c extracted from the
eight of text string b and stored
in variable a*)
a: = MID (b,c,d)
(*number of characters specified
by variable c extracted from text
string b starting at position spec-
ified by variable d and stored in
variable a*)
a: = CONCAT (b,c...)
(*text strings b, c... are joined
and stored in variable a*)
a: = INSERT (b,c,d)
(*text string c inserted into text
string b at position specified by
variable d and resulting string
stored in variable a*)
a: = DELETE (b,c,d)
(*number of characters specified
by variable c deleted from text
string b starting from position
specified by variable d and
resulting string stored in variable
a*)