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5 Applied Functions
5.1 Type Conversion Functions
54
FXCPU Structured Programming Manual
(Application Functions)
5.1.10 DINT_TO_BOOL(_E)
Outline
This function converts double word [signed] 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 double word [signed] data stored in a device specified in into bit data, and outputs
the data obtained by conversion to a device specified in .
When the input value is "0", this function outputs "FALSE".
When the input value is any value other than "0", this function outputs "TRUE".
Cautions
1) Use the function having "_E" in its name to connect a bus.
2) When handling 32-bit data in structured programs, you cannot specify 16-bit devices directly, different
from simple projects. Use labels when handling 32-bit data.
You can specify 32-bit counters directly, however, because they are 32-bit devices.
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
DINT_TO_BOOL
DINT_TO_BOOL(_DINT);
Example:
M0:=
DINT_TO_BOOL(Label);
DINT_TO_BOOL_
E
DINT_TO_BOOL_E(EN,_DINT,
Output label);
Example:
DINT_TO_BOOL_E(X000, Label,
M0);
Variable Description Data type
Input
variable
EN Execution condition Bit
_DINT ( )
Conversion source double word [signed] data Double Word [signed]
Output
variable
ENO Execution status Bit
*1 ( )
Bit data after conversion Bit
DINT_TO_BOOL
_DINT *1
Label M0
DINT_TO_BOOL_E
EN ENO
*1
M0
X000
Label
_DINT
s
d
s
d
0 FALSE
12345678 TRUE
Double word [signed] data Bit data