751
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
34.1.10 Rule for creating branch circuit
Limitation in the number of branch circuits
In one parallel branch or selective branch, up to eight circuits can be provided.
When there are many parallel branches and selective branches, however, the total number of circuits per
initial state is limited to 16 or less.
It is not permitted to execute transfer or reset from a recombination line or state relay before recombination to
a branch state relay.
Make sure to provide a dummy state, then execute transfer or reset from a branch line to a separate state
relay.
4
3
1
1
2
5
6
7
8
9
16
(Note)
8 circuits or less in 1 (parallel or selective) branch
16 circuits or less in total
2
3
4
5
6
7
8
......
