18 TYPE CONVERSION FUNCTIONS
18.47 Converting STRING to REAL
961
18
18.47
Converting STRING to REAL
STRING_TO_REAL(_E)
These functions convert STRING type data to REAL type data.
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
• These functions convert the STRING type (in the decimal format or exponent format) data input to (s) to REAL type data
and output from (d).
• The conversion source STRING type data can be in the decimal format or exponent format.
Ladder diagram, FBD/LD
Structured text
[Without EN/ENO]
[With EN/ENO]
[Without EN/ENO]
d:=STRING_TO_REAL(s);
[With EN/ENO]
d:=STRING_TO_REAL_E(EN,ENO,s);
Argument
Description
Type
Data type
EN
Execution condition (TRUE: Execution, FALSE: Stop)
Input variable
BOOL
s(IN)
Input
Input variable
STRING(24)
ENO
Output status (TRUE: Normal, FALSE: Abnormal)
Output variable
BOOL
d(STRING_TO_REAL(_E))
Output
Output variable
REAL
• Decimal point format
s
d
EN
ENO
d
s
REAL
ASCII code for 3rd character
ASCII code for 2nd character
ASCII code for 5th character
ASCII code for 4th character
ASCII code for 7th character
ASCII code for 6th character
ASCII code for 9th character
ASCII code for 11th character
00H (Indicates the end of the character string.)
ASCII code for 8th character
ASCII code for 10th character
ASCII code for 1st character
Sign data
+1
+2
+3
+4
+5
+6
+0
High-order byte
Low-order byte
(s)
(d)
REAL
33H (3)
2EH (.)
30H (0)
35H (5)
34H (4)
33H (3)
00H
31H (1)
2DH (-)
+1
+2
+3
+4
+0
High-order byte
Low-order byte
-1.35034
3
0
5
3
.
1
-
4
(s)
(d)
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
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