Dcs networking

DCS Networks
PRESENTATION BY: ASHISHPATIL
POWERPLANT,
MONNET ISPAT & ENERGY LTD
MANDIRHASAUD,RAIPUR.
PROJECT OFFICE
TIME: 04:00 PM; DATE:DECEMBER15, 2012

INDEX
A) BASICS OF NETWORKING
1 HOW NETWORKING STARTED
2 WHAT IS NETWORKING
3 TYPES OF NETWORK & DIFFERENT TOPOLOGIES
4 WHAT IS OSI LAYER & ITS FUNCTION
5 IP ADDRESSING
B) DCS NETWORKS
1 ABB SYMPHONY HARMONY DCS NETWORK
2 SIEMENS TELEPERM ME DCS NETWORK

Basics of Networking
Networking began its infancy in the mid -1960’s.
by the US Department of Defence (DoD).
The original intention of networking was being
developed to withstand a nuclear war.
Telephone networks were to vulnerable and would
terminate all conversations should a nuclear war
occur.

ARPA (Advanced Research Projects Agency)
was created in response with the launching of the
Sputnik in 1957.
ARPA decided that a DoD network should be packet-
switched networked consisting of a subnet and
host computers.
Experimental network research was awarded to
UCLA, UCSB, SRI and Univ. of Utha in 1969. These
areas were because they all had a large number
of ARPA contracts.

These 4 universities also had different and completely
incompatible host computers.
ARPANET protocols were not suitable for running over
multiple networks, so TCP/IP model and protocols
were invented in 1974.
ARPA awarded several other contracts and specifically
Univ.. of California at Berkeley to integrate the
protocols with the Berkeley UNIX.

Berkeley developed a convenient program interface
to the network and wrote many applications, utility,
and management programs to make networking easier.
In it early infancy, the OSI protocols were crushed and
the TCP/IP protocols were already in widespread use.
The OSI Model had seven layers because at the time,
IBM had a propriety seven -layer protocol called
SNA (Systems Network Architecture).

At the time, IBM dominated the computer companies
and every was scared to death that IBM would use
its clout to force everyone to use SNA.
The OSI was to be produced like an IBM-reference
model.
The OSI model became the world standard and was
not controlled by one company, but by a neutral
organization, ISO (International Standards Association).

NETWORKING IS THE SHARING OF
INFORMATION & SERVICES.
COMPUTER NETWORKING PROVIDES
THE COMMUNICATION TOOLS TO
ALLOW COMPUTERS TO SHARE
INFORMATION & ABILITIES

TYPES OF NETWORKS
LAN – LOCAL AREA NETWORK IS A SMALL
GEOGRAPHICAL AREA SUCH AS OUR SCHOOL
BOARD.
MAN – METROPOLITAN AREA NETWORK IS A
NETWORK OVER A LARGER GEOGRAPHICAL AREA
SUCH AS THE PROVINCIAL GOVERNMENT.
WAN – WIDE AREA NETWORK IS A NETWORK USED
OVER AN EXTREMELY LARGE GEOGRAPHICAL AREA
SUCH AS THE FEDERAL GOVERNMENT.

NETWORKS ARE BROKEN INTO 3 TOPOLOGIES.
THEY ARE:
•BUS TOPOLOGY
•STAR TOPOLOGY
•RING TOPOLOGY

BUS TOPOLOGY ALLOWS INFORMATION TO BE
DIRECTED FROM ONE COMPUTER TO THE OTHER.
LOTS OF BINARY COLLISION THOUGH.

STAR TOPOLOGY IS THE MOST COMMON TYPE
USED. ALL COMPUTERS ARE ATTACHED TO A HUB.
LESS COLLISIONS AND MOST EFFICIENT.

RING TOPOLOGY- USES A TOKEN TO PASS
INFORMATION FROM 1 COMPUTER TO THE OTHER.
A TOKEN IS ATTACHED TO THE MESSAGE BY THE
SENDER TO IDENTIFY WHICH COMPUTER SHOULD
RECEIVE THE MESSAGE. AS THE MESSAGE MOVES
AROUND THE RING, EACH COMPUTER EXAMINES
THE TOKEN. IF THE COMPUTER IDENTIFIES THE TOKEN
AS ITS OWN, THEN IT WILL PROCESS THE
INFORMATION.

A DISADVANTAGE OF A TOKEN RING IS IF ONE
COMPUTER IS BROKEN OR DOWN, THE MESSAGE
CANNOT BE PASSED TO THE OTHER COMPUTERS.

The seven layers of the OSI Model are:
Layer 1 PHYSICAL
Layer 2 DATA-LINK
Layer 3 NETWORK
Layer 4 TRANSPORT
Layer 5 SESSION
Layer 6 PRESENTATION
Layer 7 APPLICATION

THE PHYSICAL LAYER
The physical layeris concerned with transmitting
raw bits overa communication channel though
hubs, wires (cat5UTP), modems, networkcards…
basically anything that is physical to the network.
When looking at network cables, there are
2 types that affect nodes. They are:
In networking, computers are also known as
Hosts or Nodes.

•Straight through cables oralso known as patch cables
•Cross-overcables
The difference in the cables are the way the wires
are connected within the RJ45. I have attached a
sheet foryou in yourpackage.

Wiring:
1-3 White/Orange
2-6 Orange
3-1 White/Green
6-2 Green
4-4 Blue
5-5 White/Blue
7-7 White/Brown
8-8 Brown
Typical CrossoverCable

TWISTED SHIELDED PAIR – USED IN PHONE LINES, NETWORKS
UNSHIELDED TWISTED PAIR “ “ “ “
COAXIAL CABLE – USED IN CABLEVISION GREAT FOR VIDEO
FIBRE OPTIC CABLES - USES LIGHT TO CARRY SIGNAL BUT
HARD TO WORK WITH AND LOOSES SIGNAL OVER LONGER
DISTANCES( 2 TO 25 KM)
COMMUNICATION CHANNELS

Crimping Tool Hub

THE DATA-LINKLAYER
The data link layer takes raw transmission and
transform it into a line that appears free of
transmission errors in the network layer.
The Data-LinkLayeralso is where you would find
the MAC Address. (Media Access Control). To find the
MAC Address of yourcomputer, orany computer:
Start/Programs/MS Prompt and type: ipconfig/all
"C:WINDOWS>" prompt, type "tracert
www.howstuffworks.com"

THE DATA-LINKLAYER
You will also find smart devices such as switches in
the Data-LinkLayer.
The digital information that needs to be sent such as
and e-mail, attachments, etc needs to be broken into
smallerbits known as packets.
These packets require some information similarto
sending a letterin the mail.

Hea der Tra iler (Footer)
Conta ins : Conta ins :
Ma c Address (if a va ila ble) Ma c Address (from your computer)
IP Address (where it's going) IP Address (where it ca me from)
PACKETS
Bits of
informa tion
THERE ARE A NUMBEROF PACKETS THAT WILL
FOLLOWEACHOTHERTOTHE FINAL DESTINATION.

THE NETWORKLAYER
The network layer is concerned with controlling
the operation of the subnet. A ROUTER is used to
determining how packets are routed from source
to destination.
If one path is busy, then the routerwill select another
path forthe packets to travel. So really, the packets
can all have different paths and find theirway to the
final destination.

THE NETWORKLAYER
The routerhas millions of IPaddressing built into
the software, and knows where to send the packets.
IPstands forInternet Protocol and is basically an
address that the packets will be sent to.
An example would be 216.27.61.137

THE NETWORKLAYER
If you lookat the IPAddress, the numberare broken
into different categories.
216. 27.61.137
Classification Hosts
216. 27.61.137
Octets

Classifications can be broken into 3 classes. They are:
Class A - Only the first octet is used foraddressing and
the balance used forhosts.
Class B- The first two octet are used foraddressing
and the balance used forhosts.
Class C - The first three octet are used foraddressing
and the balance used forhosts.

Every machine on the Internet has a unique
identifying number, called an IP Address.
A typical IP address looks like this:
216.27.61.137
But computers communicate in binary form.

The same IP address in binary:
11011000.00011011.00111101.10001001
216.27.61.137

If you add all the positions together, you get 32,
which is why IP addresses are considered
32-bit numbers
Combine the four octets and you get 232
or a possible
4,294,967,296 unique values.
11011000.00011011.00111101.10001001

Class A - This class is for very large networks,
such as a major international company might have.
IP addresses with a first octet from 1 to 126 are
part of this class.
CLASS A (Private IP)
FROM10.0.0.0 THROUGH10.255.255.255
CLASS A (Public IP)
FROM1.0.0.0 THROUGH126.0.0.0

Class B- This class is used for medium-sized networks.
A good example is a large college campus.
IP addresses with a first octet from 128 to 191
are part of this class. Class B addresses also include
the second octet as part of the Net identifier.
CLASS B(Private IP)
FROM172.16.0.0 THROUGH172.31.255.255
CLASS B(Public IP)
FROM128.0.0.0 THROUGH191.0.0.0

Class C - Class C addresses are commonly used for
small to mid-size businesses. IP addresses
with a first octet from 192 to 223 are part of this
class. Class C addresses also include the second
and third octets as part of the Net identifier.
CLASS C (Private IP)
FROM192.168.0.0 THROUGH192.168.255.255
CLASS C (Public IP)
FROM192.0.0.0 THROUGH223.0.0.0

Loopback- The IP address 127.0.0.1 is used
as the loopback address. This means that it is
used by the host computer to send a message
back to itself.
LOOPBACK
CLASS D(MULTICAST)
FROM224.0.0.0 TO 239.0.0.0
CLASS E (FORRESEARCH)
FROM240.0.0.0 TO 255.0.0.0

THE TRANSPORT LAYER
The transport layer “DIRECTS PACKETS”, splits it up into
smaller units if need be, pass these to the network
and ensure that the pieces are travelling in an
orderly fashion.
A series of protocols are also established in this
layerto ensure properflow of the packets.
You can basically describe the Transport Layeras
a “TRAFFIC COP”.

THE SESSION LAYER
The session layer allows different machines to
establish sessions between themselves.
Once communications are established, encryption
then begins both parties.

THE PRESENTATION LAYER
The Presentation Layer’s job is managing data
structures and converting from the representation
used inside the computer to the network standard
representation an vice versa.
In Otherterms, the Presentation layerbasically
takes the packets and re-assembles them so you can
open the e-mail orthe attachment.
If any packets got lost along the way, orwere
damaged, then the Presentation layerwill send a
sign to the senderthat it requires the specific packet.

THE APPLICATION LAYER
The Application layer contains a variety of protocols
that are commonly required.
Another Application layer function is file transfer.
Different file systems have different file naming
conventions, different ways of representing text lines,
and so on.
Transferring a file between two different systems
requires handling and other incompatibilities.

FTP - File Tra nsfer Protocol
FTP provides a sta ndard system for sending
a nd receiving files over IP networks.
HTTP Protocol
Web browsers a nd servers use the Hypertext
Tra nsfer Protocol (HTTP) protocol to
communica te.
Electronic Ma il Protocols
Severa l network protocols were developed
specifica lly to support electronic ma il over the
Internet.

SO AP - Simple O bject Access
Protocol
SO AP defines a sta nda rd wa y to encode objects
within network pa ckets using XML.
DHCP
The Dyna mic Host Configura tion Protocol
(DHCP) supports a utoma tic a ddress a ssignment
a nd improved configura tion ma nagement of IP
networks.

IPv6 - Internet Protocol version 6
IPv6 promises to relieve the current IP a ddress
shorta ge, a nd this new version of the protocol
ma y a lso increa se performa nce a nd improve
a dministra tion ca pabilities.
PPPoE
The Point to Point Protocol over Ethernet
(PPPoE) sta ndard helps a ccess providers
ma na ge their broa dba nd service delivery, a nd
it ca n a lso improve the ea se of use for DSL a nd
ca ble modem customers.

DCS NETWORK
ABB DCS PRESENT LAN CONFIGURATION
CON 5 CON 6 CON 2 CON 4CON 7
SWITCH - 1 SWITCH - 2
HNCC
20_5
HNCC
20_4
HNCC
EWS

DCS NETWORK
ABB DCS PREVIOUS LAN CONFIGURATION
CON 5 CON 6 CON 2 CON 4CON 7
SWITCH - 1 SWITCH - 2
HNCC
20_4
HNCC
EWS
HNCC
20_5

ABB DCS NETWORK
PREVIOUS NETWORK DESIGNING WAS HAVING
DRAWBACK . THE HMI’S AVAILABILITY WAS COMPROMISED
IF THE PROBLEM OCCURS IN NETWORK
DEVICE(SWITCHES).
IN PRESENT NETWORK DESIGNING IT WAS RECTIFIED .
THE HMI’S AVAILABILITY WAS ENHANCED IF THE PROBLEM
OCCURS IN ANY NETWORK DEVICE(SWITCHES).
WE HAVE ASSIGNED THE SERVER 20_4 & SERVER 20_5 TO
SWITCHES 1 & 2. AND SWITCHES 1 & 2 ARE
INTERCONNECTED SO HMI’S AVAILABILITY IS MAXIMISED.

DCS Network
ABBDCS NETWORKCONSIST OF 2 NETWORKS
1.OPERATION NETWORK(O-NET)- RJ48 ETHERNET CAT-5E CABLES
ARE USED& SPEEDUPTO 10Mbps.
2. COMMUNICATION NETWORK(C-NET)-IT IS UNIDIRECTIONAL,
HIGHSPEEDSERIAL DATA NETWORKTHAT OPERATES AT
10MHz COMMUNICATION RATE. IT SUPPORTS UPTO250
DROPS ORNODES .
3. HARMONY NETWORKCOMMUNICATION COUPLER(HNCC)-IT
SERVES AS A GATEWAY BETWEEN O-NET & C-NET .

ABBDCS NETWORK
OPERATOR
STATION
OPERATOR
STATION/SERVER
ENGG.
STATION
REDUNDANT DISTRIBUTEDCOMMUNICATION NETWORKCNet
WHRB-
2,3,4
TG-2
AFBC-1
MARSHALLING RELAY
FIELDPROCESS:ANALOG/DIGITAL
O-Net
C-Net
HNCC HNCC
HNCC- HARMONY NETWORK
COMMUNICATION COUPLER

DCS Network
SIEMENS TELEPERMME DCS
MMI
132.147.160.124
HUB
132.147.160.1
UNIXSERVER
132.147.160.24
PRINT SEVER
132.147.160.224
CGP DMP
ENGG. STATION
132.147.160.50
TX/RX
CS275
DATA HIGHWAY
CGA01
PROCESS:ANALOG/DIGITAL
SIGNALSREDUNDANT BUS
OS220EA
AS220EA

SIEMENS DCS Network
CS 275 BUS SYSTEM- It Permits Serial transmission of
data between various participants (OS 220EA & AS 22OEA) connected to
it. It works on token passing principle or the flying master function.This
flying master principle means that the bus control is distrbuted amongst the
participants instead of a central bus control.This result in higher availability
of the bus system.
NAT- It is interface module allows connection of Personal Computers to
20m local bus of the CS275 bus subsystem.IRQ 10 is the default address
assign to NAT card on sco unix operating system.The cable from N-AT to
Teleperm bus is 2.5m long.

DCS NETWORKS
THANKS TO ALL OF YOU,
KEEP SMILING UNTIL WE
MEET HERE NEXT TIME &
“ALWAYS BE IN GOOD
NETWORK”

Dcs networking

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