20 ARITHMETIC OPERATION FUNCTIONS
20.6 Exponentiation
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20
20.6
Exponentiation
EXPT(_E)
These functions output the exponentiation of an input value.
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
• These functions raise the REAL type data input to (s1) by INT, DINT, or REAL specified by (s2), and output the operation
result from (d).
■
Operation result
1.
Function without EN/ENO
The following table lists the operation results.
2.
Function with EN/ENO
The following table lists the execution conditions and operation results.
*1 When FALSE is output from ENO, data output from (d) is undefined. In that case, modify a program so that the data output from (d) is
not used.
Ladder diagram, FBD/LD
Structured text
[Without EN/ENO]
[With EN/ENO]
[Without EN/ENO]
d:=EXPT(s1,s2);
[With EN/ENO]
d:=EXPT_E(EN,ENO,s1,s2);
Argument
Description
Type
Data type
EN
Execution condition (TRUE: Execution, FALSE: Stop)
Input variable
BOOL
s1(IN1)
Cardinal number
Input variable
REAL
s2(IN2)
Exponent
Input variable
ANY_NUM
ENO
Output status (TRUE: Normal, FALSE: Abnormal)
Output variable
BOOL
d(EXPT(_E))
Output
Output variable
REAL
Operation result
(d)
No operation error occurred
Operation output value
An operation error occurred
Indefinite value
Execution condition
Operation result
EN
ENO
(d)
TRUE (Executes operation)
TRUE (Operation error did not occur)
Operation output value
FALSE (Operation error occurred)
Indefinite value
FALSE (Stops operation)
FALSE
Indefinite value
s1
d
s2
EN
ENO
d
s1
s2
REAL
4.0
INT
2
REAL
16.0
(s2)
(s1)
(d)
Summary of Contents for MELSEC iQ-F FX5
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