thuyết trình EtherNET-IP

Nhóm 3
Faculty of Electrical & Electronic
Seminar Topic
ETHERNET/IP
CONTENT
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1. Introduction to Ethernet/IP
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2. Layers
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A.Physical layer
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B.Datalink layer
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C.Network & Transport layer
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D.The Upper layer
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3. Applications
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Introduction
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Layers
o
EtherNet/IP is the
implementation of CIP
over TCP/IP and
Ethernet (IEEE 802.3).
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The EtherNet/IP
specification defines :

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● EtherNet/IP uses standard IEEE 802.3 technology
at the Physical and Data Link Layers. This standard provides
a specification for physical media, defines a simple frame format for
moving packets of data between devices and supplies a set of rules for
determining how network devices respond when two devices attempt to
use a data channel simultaneously. This is known as CSMA/CD
(Carrier Sense Multiple Access/Collision Detection).

The Physical Layer
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● As a network with an
active infrastructure,
EtherNet/IP is typically
configured using a series of
network segments
constructed of point-to-point
connections in a star
configuration. The core of
this network topology is an
interconnection of Ethernet
Layer 2 and Layer 3 switches,
can accommodate an
unlimited number of point-
to-point nodes.

The Physical Layer
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•Typically, a backbone of switches, in which each switch isolates a machine or a major part of a machine, is connected with 100Mbps-fiber optic cables. The other ports of the switch can be connected using
twisted pair or fiber cables to the control devices for that part of the machine or manufacturing process.

•EtherNet/IP networks can be either isolated (not connected directly to the enterprise network) or non-isolated
The Physical Layer
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The Datalink Layer
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IEEE's 802.3 specification is also the standard used for transmitting packets of data from device to
device on the EtherNet/IP Data Link Layer. Ethernet employs a CSMA/CD media access mechanism that
determines how networked devices share a common bus (i.e., cable), and how they detect and respond
to data collisions.
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Is the lowest layer of TCP/IP,where IP resides
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Is also where the Address Resolution
Protocol (ARP) resides
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When a device want to transmit
an IP datagram to other device:
+look up the ethernet address
+or use the internal ARP table
The network Layer
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
Note that: Ethernet broadcast messages pass through hubs and
switches and bridges, but they do not pass through routers

Ethernet addresses cannot be changed and IP addresses may be
changed
Ethernet address Ip address
The network Layer

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There are three important binary properties that
serve as the basis for the classification of transport
layer protocols:
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1. Connection-oriented vs. Connectionless
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2. Stateful vs. Stateless
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3. Reliable vs. Unreliable
Based on the above classification, we have two
protocol TCP and UDP looks like complete opposites
The transport Layer
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The transport Layer
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EtherNet/IP uses the Common Industrial Protocol (CIP), a
strictly object-oriented protocol, at the upper layers. Each
CIP object has attributes (data), services (commands) and
behaviors (reactions to events).
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The upper Layer
Producer-consumer
communication model
"device types" & "device profiles”
Seamless bridging and routing
MAIN
FEATURES

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The upper Layer
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CIP's producer-consumer communication model
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The upper Layer

CIP also includes "device types" for which there are
"device profiles”.
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specify the set of CIP objects, configuration options
and I/O data formats.
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promote a common application interface for a given
device type and interoperability in networks
comprised of devices from multiple vendors.
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The upper Layer
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Seamless bridging and routing is perhaps
the most significant advantage for users of
CIP Networks for it is this mechanism that
most protects the user's investment for the
future.
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The upper Layer
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Seamless bridging and routing
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The upper Layer


Automatic transfer lines, paint shops, and assembly lines

Food processing/packaging

Sectional conveyors

Discrete-part machines

Applications requiring fast response times
Most of the high-speed applications that require high throughput
and speed, high I/O count, distribution across large geographic
distances, and real-time performance.
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Applications
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typology

www.odva.org

The CIP Advantage Technology Overview Series

CIP Motion over EtherNet/IP

/>n.html

/>dustrial_communication/fieldbus/ethernet_ip/ethe
rnet_ip_intro.html
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REference

Thank you for watching
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