Delta Electronics DVP15MC11T User Manual

Chapter 8 Logic Instructions
8_

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.
 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 output value of Out is a nonnumeric value when the input value of In is a negative number.
The variable table and program
Variable name
Data type
Current value
SQRT_EN
BOOL
TRUE
SQRT_In
REAL
-2.0
Out1 LREAL 1.#QNAN
1
SQRT
EN ENO
In Out
SQRT_EN
SQRT_In Out1
 Programming Example

The data types of variables SQRT _In and Out1 are INT and LREAL respectively. The value of Out1
is 4.0 if the value of SQRT _In is 16 when SQRT _EN changes to TRUE. The value of Out1 is 10.0
as SQRT_In is 100.
 Variable 1
Variable name
Data type
Current value
SQRT_EN
BOOL
TRUE
SQRT_In
INT
16
Out1
LREAL
4.0
 Variable 2
Variable name
Data type
Current value
SQRT_EN
BOOL
TRUE
SQRT_In
INT
100
Out1
LREAL
10.0
 The program
1
SQRT
EN ENO
In Out
SQRT_EN
SQRT_In Out1
1
1
0 4
In
Out
2
8-97

Delta Electronics DVP15MC11T Specifications

General

Brand	Delta Electronics
Model	DVP15MC11T
Category	Controller
Language	English