Delta Electronics DVP15MC11T, Operation Manual

Page: 159 / 601

DVP15MC11T Operation Manual
_8
8.8.16 ACOS
FB/FC Explanation Applicable model
FC
ACOS is used to get the arc cosine of a number and the result is output to
Out . The unit of Out is radian.
DVP15MC11T

Parameters
Parameter
name
Meaning
Input/
Output
Description Valid range
In
Number to
process
Input Number to process
Depends on the data type of
the variable that the input
parameter is connected to.
Out
Operation
result
Output Operation result
0 ~ π
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
In
● ● ● ● ● ● ● ● ● ● ● ● ● ●
Out
●
Note:
The symbol
●
indicates that the parameter is allowed to connect to the variable or constant of the data type.

Function Explanation

ACOS is used to calculate the arc cosine of the input parameter In and the result is output to Out .

Users can choose different data types for the input parameter in this instruction. But the data type of
the output parameter is restricted to LREAL. An error will occur during the compiling of the software
if the data type of the output parameter is not LREAL.
A CO S
EN ENO
In Ou t
O ut
In
2
0 1, 0 - 1,0
I n I nput dat a C osi ne
： ( )
O ut Ar c co si ne i n radians
： ( )
π
π
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