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5.6 Standard Selection Functions
162
FXCPU Structured Programming Manual
(Application Functions)
5.6 Standard Selection Functions
5.6.1 SEL(_E)
Outline
This function selects either one between two data in accordance with the input condition, and outputs the
selection result.
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 outputs either one between the values stored in devices specified in and in
accordance with the value stored in a device specified in to a device specified in using the data
type of data stored in a device specified in and .
When the value stored in a device specified in is "FALSE", this function outputs the value stored in a
device specified in to a device specified in .
When the value stored in a device specified in is "TRUE", this function outputs the value stored in a
device specified in to a device specified in .
Example: When the data type of input variables and is word [signed]
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S
FX
U
/FX
2C
FX0N FX0(S)
Function name
Expression in each language
Structured ladder ST
SEL
SEL(_G,_IN0,_IN1);
Example:
D20:=
SEL(M0,D0,D10);
SEL_E
SEL_E(EN,_G,_IN0,_IN1,Output
label);
Example:
SEL_E(X000,M0,D0,D10,D20);
Variable Description Data type
Input
variable
EN Execution condition Bit
_G ( )
Bit data used as the selection condition Bit
_IN0 ( )
Selectable data, or word device which stores such data ANY
_IN1 ( )
Selectable data, or word device which stores such data ANY
Output
variable
ENO Execution status Bit
*1 ( )
Word device which will store the selection result ANY
SEL
*1
D20M0 _G
_IN0D0
_IN1D10
SEL_E
EN ENO
*1
D20
X000
M0
_G
_IN0D0
_IN1D10
s1
s2
s3
d
s2 s3
s1
d
s2 s3
s1
s2
d
s1
s3
d
s2 s3
SEL
G
_IN0
_IN1
1234
Word [signed] data
Word [signed] data
1234
Word [signed] data
FALSE
Bit data
5678