Features And Types Of System Units; System Unit Features - Omron sysmac NX Series User Manual

1 Features and System Configuration
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Features and Types of System Units

This section describes features and types of System Units.
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System Unit Features

System Units are Units used to build the system for separating power supply systems or supplying
power in the midstream in a CPU Rack or a Slave Terminal.
The NX-series System Units provide the following features.
Additional Information
CPU Rack
A CPU Rack is a rack to which a CPU Unit or Communication Control Unit is mounted. For NX-
series CPU Units to which NX Units can be connected, a CPU Rack is configured to have a
CPU Unit with NX Units and an End Cover mounted to it. For NX-series Communication Control
Units, a CPU Rack has a Communication Control Unit with NX Units and an End Cover mount-
ed to it.
Slave Terminal
Slave Terminal is a generic name for a building block-type remote I/O terminal that contains a
group of NX Units connected to a Communications Coupler Unit.
Can Be Connected to More Than One Unit with the NX Bus
NX Unit NX-series System Units can be connected to the following Units, which each support an NX
*1
bus.
• NX-series CPU Unit
• NX-series Communications Coupler Unit
• NX-series Communication Control Unit
When these Units are used, you can unify the methods for installing, wiring, and setting up NX Units,
and eventually reduce design costs.
Example:
NX-series NX1P2 CPU Unit
NX-series EtherCAT Coupler Unit
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NX Units: NX-series Digital I/O Units or other Units
NX-series System Units User's Manual (W523)