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26 Applied Instructions (Character String Control)
26.4 LEN / Character String Length Detection
631
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)
26.4 LEN / Character String Length Detection
Outline
This instruction detects the number of characters (bytes) 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
LEN 16 bits Continuous LEN(EN,s,d);
LENP 16 bits Pulse LENP(EN,s,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Head device storing a character string whose number of characters is
to be detected
String
Output
variable
ENO Execution state Bit
Device storing the detected character string length (number of bytes) ANY16
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
V Z Modifier K H E
""
P
zzzzzzzz z z
zzzzzzz z z
LEN
EN ENO
d
s
LENP
EN ENO
d
s