Omron NX-IA3117, User Manual

Page: 37 / 342

1 - 3
1 Features and System Configuration
NX-series Digital I/O Unit User’s Manual (W521)
1-
1 Fe
at
ur
es
a
n
d T
ype
s o
f D
igi
-
tal I/O Unit
s
1
1
-1-2
Digit
al I/O Unit T
yp
es
The types of Digital I/O Units are as follows.
Refer to 1-3 Model List on page 1-6 for details on Digital I/O Unit models and 1-4 List of Functions on
page 1-14 for details on their functions.
1-1-2 Digital I/O Unit Types
Type Purpose
Digital Input Units These are Units with functionality to process input of digital signals from sensors
and other connected external devices.
Digital Output Units These are Units with functionality to process output of digital signals to relays and
other connected external devices.
Digital Mixed I/O Units These are Units with functionality to process input of digital signals from connected
external devices as well as functionality to process output of digital signals to con-
nected external devices.