Allen-Bradley EtherNet/IP 842E-MIP2BA - Chapter 3 Use of the Common Industrial Protocol; Ethernet;Ip Overview

Rockwell Automation Publication 842E-UM001C-EN-P - September 2016 15
Chapter 3
EtherNet/IP Overview
Ethernet Industrial Protocol (EtherNet/IP) is a frame-based computer
networking technology for local industrial area networks. It follows the seven
layers of the Open Systems Interconnection model:
Use of the Common
Industrial Protocol
EtherNet/IP implements the Common Industrial Protocol (CIP), the
application layer protocol specified for EtherNet/IP.
EtherNet/IP uses the CIP on the process layer. The 842E encoder meets the
requirements of the EtherNet/IP protocol according to IEC 61784-1 and the
requirement of the encoder profile.
Figure 1
OSI Model
Host Layers Layer Function
7. Application Network process to application
6. Presentation Data, encryption
5. Session Inter-host communication
Explicit and implicit messaging
4. Transport Flow control, TCP/UDP
Media
Layers
3. Network Internet protocol, logical addressing
2. Data Link Physical addressing
1. Physical Media, signal and binary transmission, peer-to-peer, multicast, unicast
IP
UDP
TCP
HTTPFTP CIP
Ethernet
Process layer
Communication
layers
Explicit messagin
g
Implicit messagin
g
Physical layer