Omron NX Series User Manual page 68

2 System Configuration
2-1
Basic System Configuration
An NX-series Controller supports the following two types of configurations.
• Basic Configuration
The basic configurations include the CPU Unit and the Configuration Units that are controlled direct-
ly by the CPU Unit. There are two basic configurations.
a) EtherCAT network configuration
• Other Network Configurations
These are the configurations of the systems that are connected to the CPU Unit's built-in
EtherNet/IP port and Communications Units.
 Basic Controller Configuration
With an NX-series CPU Unit, you can use an EtherCAT network as a basic system.
With the EtherCAT network system of the NX-series CPU Unit, the period for sequence processing
and motion processing in the CPU Unit is the same as the EtherCAT communications period.
This enables high-precision sequence control and motion control with a constant period and little
fluctuation.
For information on EtherCAT, refer to the NJ/NX-series CPU Unit Built-in EtherCAT Port User's
Manual (Cat. No. W505).
2-1-1
EtherCAT Network Configuration
The EtherCAT network configuration consists of an NX-series CPU Unit, an NX-series Power Supply
Unit, an End Cover, and the EtherCAT slaves.
You use the built-in EtherCAT master port on the NX-series CPU Unit to connect EtherCAT slaves.
2-2
NX-series CPU Unit Hardware User's Manual (W535)