16 Input/Output Extension Blocks
249
FX
3G
Series Programmable Controllers
User's Manual - Hardware Edition
11
H
igh-Speed
C
ounters
12
O
utpu
t Wi
ring
13
Wi
ring for
Va
rious U
ses
14
Te
st R
un,
M
ain
tenanc
e,
Troub
le
shooting
15
Input/O
utput
Pow
ere
d
Extens
ion U
nit
s
16
Input/Output
Ex
tension
Blocks
17
Extensi
on
Pow
er Suppl
y
Un
it
18
O
ther Ex
tensi
on
Un
its
an
d
O
pti
ons
19
Displ
ay
Modul
e
20
Te
rmi
nal Block
16.1 Outline
16.1
Outline
Connect input/output extension blocks to the PLC to add more input/output points. 8 or 16 points can be
added by an input/output extension block.
Since the power is supplied from the main unit, it is not necessary to prepare another power supply unit for
each input/output extension block.
16.1.1 Product configuration
There are various types of input/output extension blocks. Select optimum blocks considering the input type,
output type, and connection unit of your system.
16.1.2 Product list
1. For input/output extension
:Sink [-common],
:Source [+common]
*1.
Four inputs and four outputs are occupied as unused numbers.
2. For input extension
:Sink [-common],
:Source [+common]
Model
Input
Output
Connection
type
Type
Number
of points
Common
system
Type
Number
of points
Common
system
Common to both sink and source inputs
FX
2N
-8ER-ES/UL
24V DC
4(8)
*1
Relay
4(8)
*1
-
Terminal block
Dedicated to sink input only
FX
2N
-8ER
24V DC
4(8)
*1
Relay
4(8)
*1
-
Terminal block
Model
Input
Output
Connection
type
Type
Number
of points
Common
system
Type
Number
of points
Common
system
Common to both sink and source inputs
FX
2N
-8EX-ES/UL
24V DC
8
-
-
-
Terminal block
FX
2N
-16EX-ES/UL
24V DC
16
-
-
-
Terminal block
Dedicated to sink input only
FX
2N
-8EX
24V DC
8
-
-
-
Terminal block
FX
2N
-16EX
24V DC
16
-
-
-
Terminal block
FX
2N
-16EX-C
24V DC
16
-
-
-
Connector
FX
2N
-16EXL-C
5V DC
16
-
-
-
Connector
100V AC input type
FX
2N
-8EX-UA1/UL
100V AC
8
-
-
-
-
Terminal block
Input/output extension blocks
Input type
24V DC
(Sink, source)
Power supply
Power supply to
inside of PLC
Number of points
8
24V DC
(Sink)
100V AC system
5V DC
Connection unit
Terminal block
Connector
Output type
Relay
Triac
Transistor
(Source)
Transistor
(Sink)
16
Sink
Source
Sink
Source
Sink
Sink
Source
Sink
Source
Sink
Source
Sink
Sink
Sink
Sink