Mitsubishi Electronics FX3G User Manual

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 Series

Programming Manual - Basic & Applied Instruction Edition

26 Character String Control – FNC200 to FNC209

FNC160

-F

NC1
69

R

eal
 T

ime C

lock
 

C

ontrol

FNC17

0-F

NC
179

E

xternal D

evice

FNC

180

Alternate 

Instructions

FN

C181-

FNC18

9

O

thers

FNC190

-F

NC1
99

Bl

oc

k D
ata

 

Op
er

ation

FNC20

0-F

NC209

C

har

ac

te

r S

trin

g 

Con
tro

l

FNC2
10-
FNC21

9

Dat
a 

Operati

on 3

FNC220

-F

NC2
49

Da

ta 

C

omp
ari

son

FNC25

0-F

N

C

269

D

ata T

abl
e 

Operation

FNC2

70-
FNC276

Ex

-Dev

ice

• This instruction can handle character codes other than ASCII codes, but the character string length is handled in 

byte units (8 bits). Accordingly, in the case of character codes in which 2 bytes express 1 character such as shift 
JIS codes, the length of 1 character is detected as “2”.

An operation error is caused in the following cases; The error flag M8067 turns ON, and the error code is stored in
D8067.

• When “00H” is not set within the corresponding device range after a device specified by 

 (error code: K6706)

•  When the detected number of characters is “32768” or more (error code: K6706)

In the program example shown below, the length of a character string stored in D0 and later is output in 4-digit BCD to
Y040 to Y057 when X000 turns ON.

   

S

X000

D10

FNC203

LEN

D0

END

K4Y40

FNC 18

BCD

D10

The length of the character

string is output to the display

unit.

b15---b8

D0
D1

49H(I) 4DH(M)

53H(S) 54H(T)

53H(S)

D10

10

D3

42H(B) 55H(U)

49H(I)

“MITSUBISHI” 

(Characters

after “00H” are

ignored.)

49H(I) 48H(H)

D2

D4

D6

D5

43H(C)

41H(A)

00H

42H(B)

Conversion

into BCD

BCD

0 0

0

1

BCD value

Y057 to Y040

“ ABC.......”

b7----b0