
15 TYPE CONVERSION FUNCTIONS
15.47 Converting STRING to REAL
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15
15.47
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
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
Input
Input variable
STRING(24)
ENO
Output status (TRUE: Normal, FALSE: Abnormal)
Output variable
BOOL
d
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
2nd word
3rd word
4th word
5th word
6th word
7th word
1st word of the character string
High-order byte
Low-order byte
(s)
(d)
REAL
33H (3)
2EH (.)
30H (0)
35H (5)
34H (4)
33H (3)
00H
31H (1)
2DH (-)
2nd word
3rd word
4th word
5th word
1st word of the character string
High-order byte
Low-order byte
-1.35034
3
0
5
3
.
1
-
4
(s)
(d)
Summary of Contents for MELSEC iQ-F FX5 series
Page 1: ...MELSEC iQ F FX5 Series Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 21: ...19 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW ...
Page 98: ...96 4 STANDARD FUNCTIONS FUNCTION BLOCKS 4 2 Standard Function Blocks MEMO ...
Page 840: ...838 23 TIME DATA FUNCTIONS 23 4 Division MEMO ...
Page 887: ......