Selection Functions; Binary Selection - Mitsubishi MELSEC-q Programming Manual

6 IEC FUNCTIONS

6.8 Selection Functions

6.8.1 Binary selection

One data is selected from among the specified two data according to the selection condition.
Function definition
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SEL
SEL_E
ANY SEL( BOOL S1, ANY S2, ANY S3 );
Argument
Argument Name IN/OUT
S1 IN
S2 IN
S3 IN
Return value
Return Value
ANY Selection result
When S1 is FALSE ....... Return value = S2
When S1 is TRUE ......... Return value = S3
Example of use
Argument Type
REAL r_data1 := SEL( b_select,
r_data2, r_data3 );
INT D1 :=
SEL( X1, D2, D3 );
DINT K8X100 :=
SEL( X1, K8X10,
K2147483647 );
BOOL b_result := SEL( b_select,
b_data1, b_data2 );
STRING s_result := SEL( b_select,
s_ary1, s_ary2 );
Selection condition
Data to be selected when S1 is FALSE
Data to be selected when S1 is TRUE
ST Program Conversion Result
LDI
EMOV
LD
EMOV
LDI
MOV
LD
MOV
LDI
DMOV
LD
DMOV
LDI
MPS
AND
SET
MPP
ANI
RST
LD
MPS
AND
SET
MPP
ANI
RST
LDI
$MOV
LD
$MOV
Description
Description
Used Instruction
b_select LDI, EMOV, LD,
r_data2
r_data1
b_select
r_data3
r_data1
X1 LDI, MOV, LD
D2 D1
X1
D3 D1
X1 LDI, DMOV, LD
K8X10 K8X100
X1
K2147483647
K8X100
b_select LDI, MPS,AND, SET, MPP,
ANI, RST,LD
b_data1
b_result
b_data1
b_result
b_select
b_data2
b_result
b_data2
b_result
b_select LDI, $MOV,LD
s_ary1
s_result
b_select
s_ary2
s_result
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