Delta Electronics DVP15MC11T, Руководство по эксплуатации

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DVP15MC11T Operation Manual
_8
8.8.2 SUB
FB/FC Explanation
Applicable
model
FC SUB is used for the subtraction operation of two variables or constants. DVP15MC11T

Parameters
Parameter
name
Meaning
Input/
Output
Description Valid range
In1 Minuend Input Minuend
Depends on the data type of
the variable that the input
parameter is connected to.
In2 Subtrahend Input Subtrahend
Depends on the data type of
the variable that the input
parameter is connected to.
Out Difference Output
The subtraction result of In1
and In2
Depends on the data type of
the variable that the output
parameter is connected to.
B
ool
ean
Bit string Integer
Real
number
Time, date
St
rin
g
B
O
O
L
BYT
E
WO
RD
D
WO
R
D
L
W
O
R
D
U
SI
N
T
U
IN
T
U
DI
NT
U
L
INT
SI
N
T
IN
T
D
IN
T
L
IN
T
R
EAL
L
R
EAL
T
IM
E
D
AT
E
TOD
D
T
ST
R
IN
G
In1
● ● ● ● ● ● ● ● ● ● ● ● ● ●
● ● ● ●
In2
● ● ● ● ● ● ● ● ● ● ● ● ● ●
● ● ● ●
Out
● ● ● ● ● ● ● ● ● ● ● ● ● ●
● ● ●
Note:
The symbol
●
indicates that the parameter is allowed to connect to the variable or constant of the data type.

Function Explanation

The instruction is used for the subtraction of two or more variables or constants. The result is output
to
Out, that is, Out= In1 - In2 .

The input parameters In1 and In2 in this instruction are allowed to be the variables of different data
types among bits, integers and real numbers. When In1 and In2 are the variables of different types,
the subtraction operation will be performed based on the data type which can contain valid ranges of
In1 and In2 values. For example, the data type of Out is DINT if the data type of In1 is INT and In2 is
DINT.
S UB
E N ENO
In1 O ut
In2
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