Filter
Top Products
5.3 Standard Arithmetic Functions
138
FXCPU Structured Programming Manual
(Application Functions)
5.3.2 SUB_E
Outline
This function performs subtraction using two values (A - B = C), and outputs the operation result.
1. Format
*1. Output variable
2. Set data
In explanation of functions, I/O variables inside ( ) are described.
Explanation of function and operation
1) This function performs subtraction ( - ) 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]
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S
FX
U
/FX
2C
FX0N FX0(S)
Function name
Expression in each language
Structured ladder ST
SUB_E
SUB_E(EN,_IN1,_IN2,Output
label);
Example:
SUB_E(X000,D0,D10,D20);
Variable Description Data type
Input
variable
EN Execution condition Bit
_IN1 ( )
Data to be subtracted or word device which stores such data ANY_NUM
_IN2 ( )
Data for subtraction 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
SUB_E
EN ENO
*1
D20
X000
D0
_IN1
_IN2D10
s1
s2
d
s1
s2
s1
s2
d
s1
s2
12345 - 6789 5556
(Word
[signed] data)
s2
(Word
[signed] data)
s1
(Word
[signed] data)
d