1-2
System Configuration and Configura-
tion Devices
1-2-1
Devices Required to Construct a Network
The basic configuration for an EtherNet/IP system includes one Ethernet switch to which nodes are
attached in star configuration using twisted-pair cable.
100 m
max.
Ethernet (LAN) port
(1) Built-in EtherNet/IP
port on NJ/NX
-
series CPU Unit
(2) Twisted-pair cable
(3) Ethernet switch
Sysmac Studio
(Support Software)
(1) Built-in EtherNet/IP
port on NJ/NX-
series CPU Unit
(1) Built-in EtherNet/IP
port on NJ/NX-
series CPU Unit
The following products are also required to build a network. Obtain them in advance.
Network device Function
Per Node
• NJ-series CPU Unit (built-in EtherNet/IP port)
(NJ501-££££/NJ301-££££/NJ101-££££)
• NX-series CPU Unit (built-in EtherNet/IP port)
(NX701-££££/NX102-££££££/NX1P2-£££
£££)
• Other OMRON PLCs
CJ2 CPU Units (built-in EtherNet/IP port)
(CJ2H-CPU££-EIP/CJ2M-CPU3£)
CJ-series EtherNet/IP Unit
*1
(CJ1W
-EIP21)
CS-series EtherNet/IP Unit
(CS1W-EIP21)
These Units are used to connect to an EtherNet/IP
network.
(2)Twisted-pair cable The twisted-pair cable has an RJ45 Modular Connec-
tor at each end.
This cable is used to connect the built-in EtherNet/IP
port or EtherNet/IP Unit to an Ethernet switch.
Use an STP (shielded twisted-pair) cable of category
5, 5e, or higher
.
(3)Ethernet switch This is a relay device that connects multiple nodes in a
star LAN.
For details on recommended devices to configure a
network, refer to 2-1-1 Recommended Network Devi-
ces on page 2-2
.
*1. The CJ1W-EIP21 EtherNet/IP Unit can be mounted only to an NJ-series CPU Unit. The unit version of the
NJ-series CPU Unit should be 1.01 or later
, and the Sysmac Studio version should be 1.02 or higher.
1 Introduction
1-5
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
1-2 System Configuration and
Configuration Devices
1
1-2-1 Devices Required to Construct a Network
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