5-20
5.1 Type Conversion Functions
5.1.7 Word (signed), double word (signed) type
→
bit type conversion
INT_TO_BOOL(_E), DINT_TO_BOOL(_E)
(2) DINT_TO_BOOL, DINT_TO_BOOL_E
Converts double word (signed) type data input to into bit type data, and outputs the
operation result from .
When the input value is 0, FALSE is output in bit type data.
When the input value is other than 0, TRUE is output in bit type data.
Operation result
(1) Function without EN/ENO
An operation is executed and the operation value is output from .
(2) Function with EN/ENO
The following table shows the executing conditions and operation results.
*1 When FALSE is output from ENO, the data output from is undefined.
In this case, create a program so that the data output from is not used.
EN ENO
TRUE (Operation execution) TRUE Operation output value
FALSE (Operation stop)
FALSE
*1
Undefined value
s
d
Double word (signed) type
12345678
0
Bit type
TRUE
FALSE
d
d
d
d