747
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
34 SFC Program and Step Ladder
34.1 SFC Program
31
FN
C
275-FN
C
279
Da
ta
Tr
ans
fe
r 3
32
FN
C
280
-F
N
C
28
9
H
igh Speed
Pr
oces
si
ng 2
33
FN
C
290-FN
C
299
Ext
ensi
on Fi
le
R
egi
st
er
34
SF
C
•S
T
L
Pr
o
g
ra
m
m
in
g
35
In
te
rru
p
t
Funct
ion
36
Sp
e
cia
l De
vic
e
37
E
rro
r C
o
d
e
A
V
e
rs
ion U
p
In
fo
rm
a
tio
n
B
Ex
ec
ut
ion Ti
m
e
s
C
Appl
ic
ab
le
In
st
ru
ct
ion Li
st
34.1.8
SFC flow formats
This paragraph shows operation patterns of single flows and operation patterns when selective branches and
parallel branches are combined in SFC programs.
1. Jump and repeat flows
1) Jump
Direct transfer to a state relay in a lower position or transfer to a state relay in a different flow is called
jump, and the transfer destination state relay is indicated by “
”.
2) Repeat
Transfer to a state relay in an upper position is called repeat, and the transfer destination state relay is
indicated by “
” in the same way as “jump.”
20
21
22
23
20
21
22
23
22
30
31
32
40
41
42
30
31
32
40
41
42
42
50
51
59
0
50
51
59
0
S0
61
62
63
60
61
62
63
60
60
