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Rockwell Automation Publication ENET-RM002C-EN-P - May 2013 13

Chapter 1

EtherNet/IP Overview

The EtherNet/IP protocol is a multi-discipline, control and information

platform for use in industrial environments and time-critical applications. The

EtherNet/IP network uses standard Ethernet and TCP/IP technologies and an

open, application-layer protocol called the Common Industrial Protocol (CIP).

The open, application-layer protocol makes interoperability and

interchangeability of industrial automation and control devices on the

EtherNet/IP network a reality for automation and real-time control applications.

The EtherNet/IP protocol follows these standards:

• IEEE 802.3—Standard Ethernet, Precision Time Protocol (IEEE-1588)

• IETF—Internet Engineering Task Force, standard Internet Protocol (IP)

• IEC—International Electrotechnical Commission

• ODVA—Open DeviceNet Vendor Association, Common Industrial

Protocol (CIP)

Topic Page

Network Protocols 14

Configuration Requirements 15

EtherNet/IP Modules in a Control System 19

Bridge across Networks 20

Application

Presentation

Session

Transport

Network

Link

Physical

CIP

Control and Information

Protocol

Ethernet

MAC

Ethernet

Physical

UDP TCP

IP-Multicast

EN50170

Control International

and

IF C 61158 Standard

Request for Comments

IETF

UDP/TCP/IP

IEEE 802.3

OPEN

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 105 106

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