Converting Dword To Bool - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

18.12

Converting DWORD to BOOL

DWORD_TO_BOOL(_E)
These functions convert DWORD type data to BOOL type data.
Ladder diagram, FBD/LD
[Without EN/ENO]
s d
Setting data
■Descriptions, types, and data types
Argument Description
EN Execution condition (TRUE: Execution, FALSE: Stop)
s(IN) Input
ENO Output status (TRUE: Normal, FALSE: Abnormal)
d(DWORD_TO_BOOL(_E)) Output
Processing details
■Operation processing
• These functions convert the DWORD type data input to (s) to BOOL type data and output from (d).
• When the input value is 0H, these functions output "FALSE".
• When the input value is any value other than 0H, these functions output "TRUE".
(s)
0H
12345678H
DWORD
• A value input to (s) is the DWORD type data value.
■Operation result
1.
Function without EN/ENO
The operation processing is executed. The operation output value is output from (d).
2.
Function with EN/ENO
The following table lists the execution conditions and operation results.
Execution condition
EN
TRUE (Executes operation)
FALSE (Stops operation)
*1 When FALSE is output from ENO, data output from (d) is undefined. In that case, modify a program so that the data output from (d) is
not used.
Operation error
There is no operation error.
[With EN/ENO]
EN ENO
s d
(d)
FALSE
TRUE
BOOL
Operation result
ENO
TRUE
*1
FALSE
Structured text
[Without EN/ENO]
d:=DWORD_TO_BOOL(s);
[With EN/ENO]
d:=DWORD_TO_BOOL_E(EN,ENO,s);
Type
Input variable
Input variable
Output variable
Output variable
(d)
Operation output value
Indefinite value
18 TYPE CONVERSION FUNCTIONS
18.12 Converting DWORD to BOOL
18
Data type
BOOL
DWORD
BOOL
BOOL
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