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26 Applied Instructions (Character String Control)
26.8 MIDW / Random Replacement of Character Strings
643
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)
26.8 MIDW / Random Replacement of Character Strings
Outline
This instruction replaces the characters in arbitrary positions inside designated character string with a
specified character string.
→ For handling of character strings, refer to "FX Structured Programming Manual [Device &
Common]."
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
MIDW 16 bits Continuous MIDW(EN,s1,s2,d);
MIDWP 16 bits Pulse MIDWP(EN,s1,s2,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Head device storing a character string used in overwriting String
Head device specifying the head position and number of characters to
be overwritten (2 points occupied)
• s2 :Head character position to be overwritten
• s2+1 :Number of characters to be overwritten
ARRAY [1..2] OF ANY16
Output
variable
ENO Execution state Bit
Head device storing a character string overwritte 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
V Z Modifier K H E
"
"
P
zzzzzzzz z z
zzzzzzzz z z
zzzzzzz z z
MIDW
EN ENO
d
s1
s2
MIDWP
EN ENO
d
s1
s2