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26 Applied Instructions (Character String Control)
26.6 LEFT / Extracting Character String Data from the Left
637
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
21
Applied Instructions
(Real Time
Clock Control)
22
Applied Instructions
(External Device)
23
Applied Instructions
(Extension
Function)
24
Applied Instructions
(Others)
25
Applied Instructions
(Block Data
Operation)
26
Applied Instructions
(Character
String Control)
27
Applied Instructions
(Data Operation 3)
28
Applied Instructions
(Data Comparison)
29
Applied Instructions
(Data Table
Operation)
30
Applied Instructions
(External Device
Communication)
26.6 LEFT / Extracting Character String Data from the Left
Outline
This instruction extracts a specified number of characters from the left end of a specified character string.
1. Format and operation, execution form
2. Set data
3. Applicable devices
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
LEFT 16 bits Continuous LEFT(EN,s,n,d);
LEFTP 16 bits Pulse LEFTP(EN,s,n,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Head device storing a character string String
Number of characters to be extracted ANY16
Output
variable
ENO Execution state Bit
Head device storing extracted character string String
Operand
type
Bit Devices Word Devices Others
System user Digit specification
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
XY M KH E
"
"
P
zzzzzzzz z z
zz zz
zzzzzzz z z
LEFT
EN ENO
d
s
n
LEFTP
EN ENO
d
s
n