Conversion instructions
118
Part II IEC Instructions
UINT_TO_BOOL
Unsigned INTEGER into BOOL
To add an enable input and enable output to the instruction, select [With EN/ENO] from the
"Instructions" pane (LD, FBD or IL editor). To reuse an instruction select "Recently used" from the
context menu or press <Ctrl>+<Shift>+<v> in the programming window.
PLC types
Availability of UINT_TO_BOOL (see page 1332)
If the input value = 0 (16#0000), the conversion result will be = 0 (FALSE); in any
other case, it will be = 1 ( TRUE).
Data type I/O Function
UINT Input input data type
BOOL Output conversion result
Description
UINT_TO_BOOL converts a value of the data type Unsigned INTEGER into a value of the data
type BOOL.
Data types
Example
In this example the function has been programmed in ladder diagram (LD) and structured text (ST).
POU header
All input and output variables used for programming this function have been declared in the POU
header.
LD
ST
Boolean_value:= UINT_TO_BOOL(UINT_value);