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2 Features and System Configuration
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
2-2 System Configurations of EtherNet/IP
Slave Terminals
2
2-2-2 Types of NX Units
The following table lists some examples of the types of NX Units that are available.
Refer to the user’s manual for the specific Units for details.
*1. The term Support Software indicates software that is provided by OMRON. If you connect to a master from
another company, use the software tool corresponding to that master.
2-2-2 Types of NX Units
Unit type Overview
Digital I/O Units These Units process I/O with digital signals.
Digital Input Units These Units process inputs with digital signals.
Digital Output Units These Units process outputs with digital signals.
Analog I/O Units These Units process I/O with analog signals.
Analog Input Units These Units process inputs with analog signals.
Analog Output Units These Units process outputs with analog signals.
Temperature Input Units These Units process inputs from temperature sensors.
Heater Burnout Detection
Units
Heater Burnout Detection Units have the following functions.
• Monitoring of CT currents to provide alarms for heater
burnouts and SSR failures
• Time-proportional control output processing to operate
heaters with SSRs
System Units System Units are used as required to build a Slave Terminal.
Additional NX Unit Power
Supply Unit
This Unit is used when the NX Unit power supply is not suffi-
cient.
Additional I/O Power Sup-
ply Unit
This Unit is used when the I/O power supply is not sufficient
or to separate the power supply in the Slave Terminal.
I/O Power Supply Connec-
tion Unit
This Unit is used when the I/O power supply terminals for
connections to external I/O devices are not sufficient.
Shield Connection Unit This Unit is used to ground more than one shield wire from
external I/O connections to the same ground.
Load Cell Input Units These Units perform input processing of the output signal
from a load cell to measure the weight or force.
IO-Link Master Units These Units use IO-Link communications to perform I/O pro-
cessing for IO-Link devices. They also support I/O process-
ing of digital signals from non-IO-Link-devices.
Communications Interface Units
*1
*1. Communications Interface Units can be connected for NX-EIC202 version 1.2 or later.
These Units support serial communications. Both RS-232C
and RS-422A/485 are supported as the serial interface.
Position Interface Units These Units perform I/O processing of position data for posi-
tioning.
Incremental Encoder Input
Units
These Units count pulses from incremental encoders.
SSI Input Units These Units process serial signal inputs from absolute
encoders or linear scales that have an SSI interface.
Safety Control Units The NX-series Safety Control Units constitute a programma-
ble safety controller that complies with IEC 61131-3 and
PLCopen
®
Safety. They include Safety CPU Units and
Safety I/O Units.
Safety CPU Unit This Unit controls the Safety I/O Units through the NX bus
and EtherNet/IP.
Safety Input Units These Units process safety inputs with digital signals.
Safety Output Units These Units process safety outputs with digital signals.