Mitsubishi Electronics FX3G User Manual

FX

3S

/FX

3G

/FX

3GC

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3U

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3UC

 Series

Programming Manual - Basic & Applied Instruction Edition

26 Character String Control – FNC200 to FNC209

This instruction searches a specified character string within another character string.

1) The character string stored in 

 and higher is searched for within the character string 

 and higher. The

search begins at the "n"th character from the left end (head character) of 

 and the search result is stored in

. The search result provides the first matching character (located from the left end (head character)) in
. 

2) When the searched character string is not detected, "0" is stored in 

.

3) When the search start position "n" is a negative number or "0", search processing is not executed.

Head device number storing a character string 

Character string

Head device number storing a character string to be searched

Character string

Head device number storing search result

16-bit binary

n

Search start position

16-bit binary

System User

Digit Specification

System User

Special 

Unit

Index

Con-
stant

Real 

Number

Charac-

ter String

Pointer

X Y M T C S D .b KnX KnY KnM KnS T C D R U \G

V Z Modify K H

E

" "

P

n

P

FNC 208

INSTR

Mnemonic

Operation Condition

16-bit Instruction

9 steps

INSTR
INSTRP

Mnemonic

Operation Condition

Continuous

Operation
Pulse (Single)

Operation

32-bit Instruction

⎯
⎯

  

S

1

  

S

2

  D

  

S

1

  

S

2

  D

  

S

1

  

S

2

  

S

2

   

D

  

S

2

Command

input

FNC208

INSTR

S

2 

S

1 

D 

n

+0

b15

+2
+3
+4

b8 b7

b0

"ABCDEFGHIJK"

S

2

+1

+5

Search is started from

the 3rd character (n = 3).
Fifth character from

the head character

46H(F)

48H(H)

45H(E)

47H(G)

42H(B)

44H(D)

41H(A)

43H(C)

4AH(J)

49H(I)

00H

4BH(K)

+0

b15

b8 b7

b0

"EFGH"

S

1

+1
+2

5

The position where the

first detected character

is located from the

head character in the

character string data

stored in        .

46H(F)

48H(H)

45H(E)

47H(G)

00H

Character string

Character string to be searched

D

S

2

S

1

S

2

   

D