1 OVERVIEW
1.2 Data Specification Method
51
1
String data
Format of character string data
The following table lists the types of character string data, each of which ends with a NULL code to be handled as a character
string.
Character string data is stored in devices or an array in ascending order of device numbers or array element numbers.
Notation of character string
The following shows the notation of character strings in ladder programs.
The following shows the notation of character strings in ST programs.
The following shows the notation of character strings in FBD/LD programs.
Data range
The following table summarizes the ranges of character string data.
*1 For the Unicode character string, characters up to the basic multilingual plane can be used.
Type
Character code
Last character
Character string
ASCII code, Shift JIS code
NULL(00H)
Unicode character string
Unicode (UTF-16 (little endian))
NULL(0000H)
(1) Character code string
Data type
Notation
Example
String
STRING
Enclose a string (ASCII, Shift JIS) and Unicode string in double quotation
marks (").
"ABC"
Character string
[Unicode]
WSTRING
Data type
Notation
Example
String
STRING
Enclose a string (ASCII, Shift JIS) in single quotation marks (').
Stest:=’ABC’;
Character string
[Unicode]
WSTRING
Enclose a Unicode string in double quotation marks (").
Stest:=”ABC”;
Data type
Notation
Example
String
STRING
Enclose a string (ASCII, Shift JIS) in single quotation marks (').
Character string
[Unicode]
WSTRING
Enclose a Unicode string in double quotation marks (").
Type
Maximum number of character strings
Maximum number of character strings that can
be handled in the program
Character string
255 single-byte characters (excluding the last NULL
character)
16383 characters (excluding the last NULL character)
Unicode character string
255 characters (excluding the last NULL character)
ABC ∙∙∙ XYZ
"ABC ∙∙∙ XYZ"
NULL
(1)
Upper
Lower
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Страница 34: ...32 MEMO ...
Страница 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Страница 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Страница 204: ...202 5 SEQUENCE INSTRUCTIONS 5 3 Output Instructions Operation error There is no operation error ...
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Страница 472: ...470 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 479: ...6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions 477 6 Operation error There is no operation error ...
Страница 504: ...502 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 518: ...516 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 520: ...518 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 754: ...752 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
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Страница 917: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 915 7 Operation error There is no operation error ...
Страница 919: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 917 7 Operation error There is no operation error ...
Страница 1415: ...13 SFC PROGRAM INSTRUCTIONS 13 1 SFC Control Instructions 1413 13 Operation error There is no operation error ...
Страница 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Страница 1795: ...25 TYPE CONVERSION FUNCTIONS 25 1 Converting BOOL to WORD 1793 25 Operation error There is no operation error ...
Страница 1805: ...25 TYPE CONVERSION FUNCTIONS 25 10 Converting WORD to DINT 1803 25 Operation error There is no operation error ...
Страница 1819: ...25 TYPE CONVERSION FUNCTIONS 25 21 Converting INT to DWORD 1817 25 Operation error There is no operation error ...
Страница 1950: ...1948 32 STRING FUNCTIONS 32 2 Extracting String Data From the Left Right Operation error There is no operation error ...
Страница 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Страница 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Страница 2082: ...2080 APPX Appendix 6 Process Control Program Examples 129 Set the default value of the loop tag ...
Страница 2093: ...APPX Appendix 7 List of Loop Tag Memory Areas Used by Process Control Instructions 2091 A MEMO ...
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