Exponential Operation - Mitsubishi MELSEC iQ-F FX5 series Programming Manual

16.5

Exponential Operation

EXP(_E)
These functions output the exponential operation result of an input value.
Ladder diagram
[Without EN/ENO]
s d
Setting data
■Descriptions, types, and data types
Argument
EN
s
ENO
d
Processing details
■Operation processing
• These functions calculate the exponent of the REAL type data input to (s), and output from (d).
• These functions are expressed as follows when the input value is "A" and the output operation result is "B".
A
B=e
• In the exponential operation, the base "e" is set to "2.71828".
• A value input to (s) is the REAL type data value.
■Operation result
1.
Function without EN/ENO
The following table lists the operation results.
Operation result
No operation error occurred
An operation error occurred
2.
Function with EN/ENO
The following table lists the execution conditions and operation results.
Execution condition
EN
TRUE (Executes operation)
FALSE (Stops operation)
*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.
Operation error
Error code Description
(SD0/SD8067)
3403 The data after conversion is not -3.40282
16 SINGLE NUMBER VARIABLE FUNCTIONS
770
16.5 Exponential Operation
[With EN/ENO]
EN ENO
s d
Description
Execution condition (TRUE: Execution, FALSE: Stop)
Input
Output status (TRUE: Normal, FALSE: Abnormal)
Output
Operation result
ENO
TRUE (Operation error did not occur)
*1
FALSE
+38
Structured text
[Without EN/ENO]
d:=EXP(s);
[With EN/ENO]
d:=EXP_E(EN,ENO,s);
(d)
Operation output value
Indefinite value
-38 -38
to -1.17549 , or 1.17549 to 3.40282
Type Data type
Input variable BOOL
Input variable REAL
Output variable BOOL
Output variable REAL
(d)
Operation output value
Indefinite value
+38
.