Delta DVP-15MC Series - Page 182

Chapter 8 Logic Instructions
8-95
8_
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
DVP15MC11T-06
 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
Boolean
Bit string Integer
Real
number
Time, date
String
BOOL
BYTE
WORD
DWORD
LWORD
USINT
UINT
UDINT
ULINT
SINT
INT
DINT
LINT
REAL
LREAL
TIME
DATE
TOD
DT
STRING
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.
ACOS
EN ENO
In Out
Out
In
2
0
1,0-1,0
In Input data Cosine： ( )
Out Ar c cosi ne in radians： ( )
π
π