1 Overview
1 - 10
NX-series Safety Control Unit User’s Manual (Z930)
You use the Sysmac Studio to connect to the USB port or the built-in EtherNet/IP port of the
NJ/NX-series CPU Unit.
This connection allows you to download safety programs to the Safety CPU Unit and to monitor the
Safety CPU Unit on the EtherCAT network.
You can connect the Sysmac Studio to the USB port on the EtherCAT Coupler Unit.
This connection allows you to download, upload, and monitor the safety programs for only the Safety
CPU Unit and Safety I/O Units that are under the EtherCAT Coupler Unit that the Sysmac Studio is
online with. The other devices cannot be accessed.
USB Connection or Ethernet Connection to the NJ/NX-series CPU
Unit
USB Connection to the EtherCAT Coupler Unit
USB
USB or EtherNet/IP
NJ/NX-series EtherCAT Communications System
Sysmac Studio
Safety
CPU
Unit
NJ/NX-series
CPU Unit
Coupler
Unit
Safety Output
Safety Input
Coupler
Unit
Safety Output
Safety Input
Accessible
Accessible
Safety control system
EtherCAT
Safety control system
USB
The Safety I/O Units mounted
under the other EtherCAT Coupler
Unit cannot be accessed.
Coupler
Unit
Sysmac Studio
NJ/NX-series EtherCAT
Communications System
Safety
CPU
Unit
NJ/NX-series
CPU Unit
Coupler
Unit
Safety Output
Safety Input
Safety Output
Safety Input
Only the Safety I/O Units
mounted under the Safety
CPU Unit are accessible.
EtherCAT