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5.3 Standard Arithmetic Functions
142
FXCPU Structured Programming Manual
(Application Functions)
5.3.4 DIV_E
Outline
This function performs division using two values (A / B = C … remainder), and outputs the quotient.
1. Format
*1. Output variable
2. Set data
In explanation of functions, I/O variables inside ( ) are described.
Explanation of function and operation
This function performs division ( / ) using word [signed]/double word [signed]/float (single precision)
data stored in devices specified in and , and outputs the operation result to a device specified in
using the data type of data stored in devices specified in and .
Example: When the data type is word [signed]
Cautions
When handling 32-bit data in structured programs, you cannot specify 16-bit devices directly, different from
simple projects. Use labels when handling 32-bit data.
You can specify 32-bit counters directly, however, because they are 32-bit devices.
Use global labels when specifying labels.
Error
1) An operation error occurs when the divisor stored in a device specified in is "0", and the function is
not executed.
2) An operation error occurs when the operation result exceeds "32,767" (16-bit operation) or
"2,147,483,647" (32-bit operation).
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S
FX
U
/FX
2C
FX0N FX0(S)
Function name
Expression in each language
Structured ladder ST
DIV_E
DIV_E(EN,_IN1,_IN2,Output
label);
Example:
DIV_E(X000,D0,D10,D20);
Variable Description Data type
Input
variable
EN Execution condition Bit
_IN1 ( )
Data to be divided, or word device which stores such data ANY_NUM
_IN2 ( )
Data for division (divisor), or word device which stores such data ANY_NUM
Output
variable
ENO Execution status Bit
*1 ( )
Word device which will store the operation result ANY_NUM
DIV_E
EN ENO
*1
D20
X000
D0
_IN1
_IN2D10
s1
s2
d
s1
s2
s1
s2
d
s1
s2
5/2 2
(Quotient)
(Word
[signed] data)
(Word
[signed] data)
s2
(Word
[signed] data)
s1
d
s2