35
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.6 Program Memory and Devices (Battery Backed)
1
In
troduct
io
n
2
Ov
e
rv
ie
w
3
In
st
ru
ct
ion
Li
st
4
D
evi
ce
s
in
De
ta
il
5
Speci
fied t
h
e
D
evi
ce &
C
onst
a
nt
6
Bef
o
re
Pr
ogr
a
m
m
ing
7
Bas
ic
In
st
ru
cti
o
n
8
FNC0
0
-FNC0
9
P
ro
g
ra
m F
lo
w
9
FNC1
0
-FNC1
9
M
ov
e
&
C
om
par
e
10
FNC
20-
FNC
2
9
Ar
ith.
&
Logi
c
O
per
at
io
n
3) Types of bit device memory
*1.
Some devices are cleared when the PLC status switches from STOP to RUN.
→
For special auxiliary relays, refer to Chapter 36.
Item
Power OFF
Power
OFF
→
ON
STOP
→
RUN
RUN
→
STOP
Contact image
memory
(X, Y, M, S)
Input relay (X)
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
Output relay (Y)
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
General type auxiliary relay
(M)
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
latched (battery backed) type
auxiliary relay (M)
Does not change.
Special type auxiliary
relay (M)
Cleared.
Set to initial
values.
*1
Does not change.
*1
General type state relay (S)
Does not change.
latched (battery backed) type
state relay (S)
Does not change.
Annunciator (S)
Does not change.
Timer contact
Time counting coil
(T)
For 100 ms
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
For 10 ms
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
Retentive type for
100 ms
Does not change.
Retentive type for 1 ms
Does not change.
Counter contact
Counting coil
Reset coil (C)
General type
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
latched (battery backed) type
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.
High speed type
Cleared.
Does not
change.
Cleared.
Does not change while M8033
is ON.