Omron Sysmac NX1P2-10 1 Series, User Manual

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1-1 Introduction
1-1-1
EtherNet/IP Features
EtherNet/IP is an industrial multi-vendor network that uses Ethernet.
The EtherNet/IP specifications are open standards managed by the ODVA (Open DeviceNet Vendor
Association), just like DeviceNet.
EtherNet/IP is not just a network between Controllers. It is also used as a field network. Because
EtherNet/IP uses standard Ethernet technology, various general-purpose Ethernet devices can be
used in the network.
EtherNet/IP System Configuration Example
Ethernet (LAN) port
100 m
max.
(1) Built-in EtherNet/IP
port on NJ/NX-
series Controller
(2) Twisted-pair cable
(3) Ethernet switch
Sysmac Studio
(Support Software)
(1) Built-in EtherNet/IP
port on NJ/NX-
series Controller
(1) Built-in EtherNet/IP
port on NJ/NX-
series Controller

High-speed, High-capacity Data Exchange through Tag Data Links
The EtherNet/IP protocol supports implicit communications, which allows cyclic communications
(called tag data links in this manual) with EtherNet/IP devices.

Tag Data Link (Cyclic Communications) Cycle Time
Tag data links (cyclic communications) operate at the cyclic period specified for each application,
regardless of the number of nodes. Data is exchanged over the network at the refresh cycle set for
each connection, so the communications refresh cycle will not increase even if the number of no-
des is increased, i.e., the concurrency of the connection's data is maintained.
Because the refresh cycle can be set for each connection, each application can communicate at its
ideal refresh cycle. For example, interprocess interlocks can be transferred at high speed, while the
production commands and the status monitor information are transferred at low speed.
1-1-2
Features of Built-in EtherNet/IP Port on NJ/NX-series CPU Units

Tag Data Links
Cyclic communications between Controllers or between a Controller and other devices are possible
on an EtherNet/IP network.
High-speed data exchange can be performed through tag data links.
1 Introduction
1-2
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)