Mitsubishi Electric MELSEC FX Series - 7.20.8 MIDW

7 Applied Instructions
7.20 Character String Control
658
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
7.20.8 MIDW
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 FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder 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
• 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
zzzzzzz z z
zzzzzzzz z z
MIDW
EN ENO
d
s1
s2
MIDWP
EN ENO
d
s1
s2