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89
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
4 Devices in Detail
4.2 I/O Relays [X, Y]
1
Int
roduct
ion
2
O
ver
view
3
In
str
uc
tion
Li
st
4
D
evices
in D
etail
5
Spec
ified t
he
D
evice &
C
onst
ant
6
Bef
ore
Pr
ogr
am
m
ing
7
B
asic
In
st
ru
ct
io
n
8
FN
C
00-FN
C
09
P
rogr
am
F
low
9
FN
C
10
-FN
C
19
Mo
ve
&
Co
mp
are
10
FNC2
0-F
NC2
9
Ar
ith.
&
Logic
O
per
ation
4.2
I/O Relays [X, Y]
Some input relays and output relays are secured in the main unit, and others are assigned to extension
devices according to the connection order. Because I/O replays are numbered in octal, numeric values such
as "8" and "9" do not exist.
4.2.1
Numbers of I/O relays
The table below shows input relay (X) and output relays (Y) numbering (Relay numbers are assigned in
octal.)
*1.
A number inside ( ) indicates the number of occupied points. The difference from the number of valid
points is unused.
FX
3UC
(D, DSS) PLC
Model
name
FX
3UC
-16M
FX
3UC
-32M
FX
3UC
-64M
FX
3UC
-96M
When
extended
256
points
in total
Input
X000 to X007
8 points
X000 to X017
16 points
X000 to X037
32 points
X000 to X057
48 points
X000 to X367
248 points
Output
Y000 to Y007
8 points
Y000 to Y017
16 points
Y000 to Y037
32 points
Y000 to Y057
48 points
Y000 to Y367
248 points
FX
3UC
-32MT-LT(-2) PLC
Model
name
FX
3UC
-32MT-LT
(-2)
When
extended
256
points
in total
Input
X000 to X017
16 points
X000 to X357
240 points
Output
Y000 to Y017
16 points
Y000 to Y357
240 points
FX
3U
PLC
Model
name
FX
3U
-16M
FX
3U
-32M
FX
3U
-48M
FX
3U
-64M
FX
3U
-80M
FX
3U
-128M
When
extended
256
points
in total
Input
X000 to
X007
8 points
X000 to
X017
16 points
X000 to
X027
24 points
X000 to
X037
32 points
X000 to
X047
40 points
X000 to
X077
64 points
X000 to
X367
248 points
Output
Y000 to
Y007
8 points
Y000 to
Y017
16 points
Y000 to
Y027
24 points
Y000 to
Y037
32 points
Y000 to
Y047
40 points
Y000 to
Y077
64 points
Y000 to
Y367
248 points
FX
3G
PLC
Model
name
FX
3G
-14M
FX
3G
-24M
FX
3G
-40M
FX
3G
-60M
When
extended
128
points
in total
Input
X000 to X007
8 points
X000 to X015
14 points(16)
*1
X000 to X027
24 points
X000 to X043
36 points(40)
*1
X000 to X177
128 points
Output
Y000 to Y005
6 points(8)
*1
Y000 to Y011
10 points(16)
*1
Y000 to Y017
16 points
Y000 to Y027
24 points
Y000 to Y177
128 points