Delta DVP-15MC Series, Operation Manual

Page: 200 / 972

Chapter 8 Logic Instructions
8-113
8_
FB/FC Explanation
Applicable
model
FC
FLOOR is used to get the integral part of a real number. The output value is the
integral part of the real number subtracted by 1 if the input real number is a
negative number.
DVP15MC11T
DVP15MC11T-
06

Parameters
Parameter
name
Meaning
Input/
Output
Description Valid range
In
Real number to
convert
Input
Real number whose integer
part is got
Depends on the data type of
the variable that the input
parameter is connected to.
Out
Conversion
result
Output Integer part of a real number
Depends on the data type of
the variable that the output
parameter is connected to.
B
oo
le
an
Bit string Integer
Real
number
Time, date
S
tr
in
g
B
OOL
BYT
E
WO
R
D
DW
O
RD
LW
O
R
D
US
INT
UI
NT
UDI
NT
UL
INT
SI
N
T
IN
T
DI
NT
LI
N
T
R
EA
L
L
R
E
AL
T
IME
D
AT
E
T
O
D
DT
S
T
RI
NG
In
● ●
Out
●
Note:
The symbol
●
indicates that the parameter is allowed to connect to the variable or constant of the data
type.

Function Explanation

FLOOR is used to get the integral part of a real number and the result is output to Out . The output
value is the integral part of the real number if the input real number is a positive number. For
example, the output value is 3 if the input value is 3.5
.
The output value is the integral part of the
real number subtracted by 1 if the input real number is a negative number. For example, the output
value is -4 if the input value is -3.5
.

Users can choose different data types for the input parameter in this instruction. But the data type
of the output parameter is restricted to LINT. An error will occur during the compiling of the software
if the data type of the output parameter is not LINT.

Precautions for Correct Use

The input variable is not allowed to omit. An error will occur during the compiling of the software if
the input variable is omitted. But the output variable is allowed to omit.
FLO OR
EN ENO
In Ou t