Delta Electronics DVP15MC11T User Manual

Chapter 8 Logic Instructions
8_
 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.

The value of Out varies between 0 and π when the value of In changes between -1.0 and 1.0. The
instruction will not go to the error state if the value of In is out of -1.0 ~1.0 and the value of Out is
nonnumeric.
The variable table and program
Variable name Data type Current value
ACOS_EN BOOL TRUE
ACOS_In
REAL
2.0
Out1
LREAL
1.#QNAN
1
ACOS
EN ENO
In Out
ACOS_EN
ACOS_In Out1
 Programming Example

The data types of variables ACOS_In and Out1 are REAL and LREAL respectively. The value of
Out1 is 0 if the value of ACOS_In is 1.0 when ACOS_EN changes to TRUE. The value of Out1 is
3.14159265358979 as ACOS_In is -1.0.
 Variable
Variable name
Data type
Current value
ACOS_EN
BOOL
TRUE
ACOS_In
REAL
1.0
Out1
LREAL
0
 Variable
Variable name
Data type
Current value
ACOS_EN
BOOL
TRUE
ACOS_In
REAL
-1.0
Out1 LREAL 3.14159265358979
 The program
1
ACOS
EN ENO
In Out
ACOS_EN
ACOS_In Out1
8-89

Delta Electronics DVP15MC11T Specifications

General

Brand	Delta Electronics
Model	DVP15MC11T
Category	Controller
Language	English