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Ethernet/ip communication, Connections over the ethernet/ip network – Rockwell Automation 1768-L45S Compact GuardLogix Controllers User Manual

Page 45

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Rockwell Automation Publication 1768-UM002C-EN-P - April 2012

45

Communicate over Networks

Chapter 4

EtherNet/IP Communication

For CIP Safety communication, including Safety I/O module control, choose a
1768-ENBT module, series A, revision 3 or later.

For standard EtherNet/IP communication, choose a 1768-ENBT or
1768-EWEB communication module, series A, revision 3 or later.

EtherNet/IP communication modules provide the following features:

Support for messaging, produced/consumed tags, HMI, and distributed
I/O.

Encapsulated messages within standard TCP/UDP/IP protocol

A common application layer with ControlNet and DeviceNet networks

Interface via RJ45, category 5, unshielded, twisted-pair cable

Support for half/full duplex 10 M or 100 M operation

Work with standard switches

No network scheduling required

No routing tables required

These software products are available for EtherNet/IP networks.

Producing and Consuming Data via an EtherNet/IP Network

The controller supports the ability to produce (send) and consume (receive) tags
over an EtherNet/IP network. Produced and consumed tags each require
connections. The total number of tags that can be produced or consumed is
limited by the number of available connections.

Connections over the EtherNet/IP Network

You indirectly determine the number of connections the safety controller uses by
configuring the controller to communicate with other devices in the system.
Connections are allocations of resources that provide more reliable
communication between devices compared to unconnected messages (message
instructions).

Table 5 - Software for EtherNet/IP Modules

Software

Purpose

Required

RSLogix 5000 programming
software

This software is required to configure the controller project and
define EtherNet/IP communication.

Yes

BOOTP/DHCP utility

This utility comes with RSLogix 5000 software. You can use this
utility to assign IP addresses to devices on an EtherNet/IP network.

No

RSNetWorx™ for EtherNet/IP
software

You can use this software to configure EtherNet/IP devices by IP
addresses and/or host names.

No

RSLinx software

You can use this software to configure devices, establish
communication between devices, and provide diagnostics.

Yes

This manual is related to the following products: