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8 APPLICATION INSTRUCTION
8.8 Character String Operation Instruction
Detecting a character string length
LEN(P)
These instructions detect the length of the character string specified by (s), and store the length in the device specified by (d)
and later.
These instructions handle data stored in the device specified by (s) to the device storing 00H as a character string.
*1 The LEN instruction is not supported by the ST language and the FBD/LD language. Use LEN of the standard function.
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
*1 T, ST, C cannot be used.
Processing details
• These instructions detect the length of the character string specified by (s), and store the length in the device specified by
(d) and later.
• These instructions handle data stored in the device specified by (s) to the device storing 00H as a character string.
Ladder diagram
Structured text
ENO:=LENP(EN,s,d);
FBD/LD
Operand
Description
Range
Data type
Data type (label)
(s)
Character string or head device number storing a character string
Character string
ANYSTRING_SINGLE
(d)
Device number storing the detected character string length
16-bit signed binary
ANY16
EN
Execution condition
Bit
BOOL
ENO
Execution result
Bit
BOOL
Operand
Bit
Word
Double word Indirect
specification
Constant
Others
X, Y, M, L, SM,
F, B, SB, S
T, ST, C, D, W,
SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(s)
(d)
(s)
(d)
EN
ENO
d
s
00H
b15
b0
b7
b8
b15
b0
(d)
(s)
(s)+1
(s)+2
(s)+n
1st character
2nd character
3rd character
4th character
5th character
6th character
"n"th character
Indicates the end of the character string.
Character string length
Содержание MELSEC iQ-F FX5
Страница 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 17: ...15 CONTENTS ...
Страница 24: ...22 MEMO ...
Страница 25: ...23 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW 2 PRECAUTIONS ON PROGRAMMING ...
Страница 126: ...124 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 132: ...130 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 140: ...138 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 191: ...7 BASIC INSTRUCTIONS 7 2 Arithmetic Operation Instructions 189 7 Operation error There is no operation error ...
Страница 202: ...200 7 BASIC INSTRUCTIONS 7 2 Arithmetic Operation Instructions Operation error There is no operation error ...
Страница 278: ...276 7 BASIC INSTRUCTIONS 7 4 Bit Processing Instructions Operation error There is no operation error ...
Страница 280: ...278 7 BASIC INSTRUCTIONS 7 4 Bit Processing Instructions Operation error There is no operation error ...
Страница 915: ...18 TYPE CONVERSION FUNCTIONS 18 13 Converting DWORD to WORD 913 18 Operation error There is no operation error ...
Страница 917: ...18 TYPE CONVERSION FUNCTIONS 18 14 Converting DWORD to INT 915 18 Operation error There is no operation error ...
Страница 932: ...930 18 TYPE CONVERSION FUNCTIONS 18 26 Converting DINT to WORD Operation error There is no operation error ...
Страница 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Страница 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
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