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5 Applied Functions
5.1 Type Conversion Functions
107
FXCPU Structured Programming Manual
(Application Functions)
1
Outline
2
Function List
3
Function
Construction
4
How to Read
Explanation of
Functions
5
Applied
Functions
6
Standard
Function Blocks
A
Correspondence
between Devices
and Addresses
5.1.36 STR_TO_BOOL(_E)
Outline
This function converts string data into bit data, and outputs the data obtained by conversion.
1. Format
*1. Output variable
2. Set data
In explanation of functions, I/O variables inside ( ) are described.
Explanation of function and operation
This function converts string data stored in a device specified in into bit data, and outputs the data
obtained by conversion to a device specified in .
Cautions
1) Use the function having "_E" in its name to connect a bus.
2) When handling character string data in structured programs, you cannot specify 16-bit devices directly,
different from simple projects. Use labels when handling string data.
Use global labels when specifying labels.
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S
FX
U
/FX
2C
FX0N FX0(S)
Function name
Expression in each language
Structured ladder ST
STR_TO_BOOL
STR_TO_BOOL(_STRING);
Example:
M0:=
STR_TO_BOOL(Label);
STR_TO_BOOL_
E
STR_TO_BOOL_E(EN,_STRING,
Output label);
Example:
STR_TO_BOOL_E(X000, Label,
M0);
Variable Description Data type
Input
variable
EN Execution condition Bit
_STRING ( )
Conversion source string data String
Output
variable
ENO Execution status Bit
*1 ( )
Bit data after conversion Bit
STR_TO_BOOL
_STRING *1
Label M0
STR_TO_BOOL_E
EN ENO
*1
M0
X000
Label
_STRING
s
d
s
d
'0' FALSE
'12' TRUE
String data Bit data