Mitsubishi MELSEC iQ-F FX5 series User Manual

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7 APPLICATION INSTRUCTION
7.6 Character string operation instruction
Extracting character string data from the left
LEFT(P)
These instructions extract "n" characters of the character string data stored in the device specified by (s) and later from the left
end (from the start), and store the extracted characters in the device specified by (d) and later.
*1 The LEFT instruction is not supported by the ST language. Use LEFT of the standard function.
Page 815 LEFT(_E), RIGHT(_E)
Setting data
■Descriptions, ranges, and data types
■Applicable devices
*1 T, ST, C cannot be used.
Processing details
• These instructions extract "n" characters of the character string data stored in the device specified by (s) and later from the
left end (from the start), and store the extracted characters in the device specified by (d) and later.
• A character string stored in (s) indicates data stored in devices from the specified device until "00H" is first detected in units
of 1 byte.
Ladder diagram Structured text
*1
ENO:=LEFTP(EN,s,n,d);
Operand Description Range Data type Data type (label)
(s) Character string or head device number storing a character string  Character string Character string
(d) Head device number for storing "n" characters extracted from the
left of the device specified by (s)
 Character string Character string
(n) Number of characters to be extracted 1 to 16383 16-bit unsigned binary ANY16
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s) 
*1
  
(d) 
*1
  
(n)       
(s) (d) (n)
00H
00H
b15 b0b7b8
b15 b0
b7b8
(s)
(s)+1
(d)
(d)+1
ASCII code for 1st characterASCII code for 2nd character
ASCII code for 3rd characterASCII code for 4th character
ASCII code for 1st characterASCII code for 2nd character
ASCII code for 3rd characterASCII code for 4th character
ASCII code for (n-1) th
character
ASCII code for (n-2) th
character
ASCII code for (n-1) th
character
ASCII code for (n-2) th
character
ASCII code for (n) th
character
ASCII code for (n+1) th
character
ASCII code for (n) th
character
ASCII code for the last
character

Mitsubishi MELSEC iQ-F FX5 series Specifications

General

Brand	Mitsubishi
Model	MELSEC iQ-F FX5 series
Category	Controller
Language	English