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.
FX
3U(C)
FX
3G
FX
2N(C)
FX
1N(C)
FX
1S
FX
U
/FX
2C
FX
0N
FX
0(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
