疯狂系列工控培训教程、手册合集

Dilbert’s

View

on

Future

Technology

Presentations2AgendaNetwork

TrendsProducer/Consumer

ModelEthernet

-

OverviewControlNet

-

OverviewDeviceNet

-

Overview

3I’m

just

trying

to

manufacture

Widgetsand

my

control

system

is

overpoweringme!

Just

look

at

the

challenges

I

face...4Longwiring

runslead

to

highinstallation

costsLengthy

startuptimes

with

newinstallations.Ineed

access

toddata

on

my

plantfloor

from

adifferent

location

-maybe

evenanother

plantinanothercity!It

takes

too

longto

troubleshootmy

system

whensomething

iswrong.No

communicationwith

products

fromdifferent

vendors.I

don’t

have

theflexibility

to

addto

or

change

theexisting

system.Need

toimproveperformancefrom

mycurrent

systemHELP!5Can

Rockwell

Automationhelp

me

solve

my

problems?Lotts

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.HELP!6Yes,

wecan! You

certainly

havemany

issues

that

need

to

beaddressed.

Let’s

start

with

somenetworking

trends

and

theory...RockwellAutomationLotts

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.HELP!7ControlElementDeviceElementI’mopenDistributingdevices

toeliminate

I/O

and

reduce

wiringI’mopen&

I’m

OK!Devices

with

diagnostics

toimprove

process

availabilityLogic

capable

devices

toimprove

performance

andreduce

costsDistribution

of

ControlControl

migrating

into

other

devicesIncreased

Importance

of

Networking分布式控制市场趋势Distributing

I/O

toreduce

wiring

costsDistributing

controllers

toimprove

performance8Mainframe(Big

Computer

In

The

Sky)RS-2321970’sCentral

ComputingDumbUserTerminalsProprietary

technologiesSingle

vendor

solutionRigid

configuration1980’sDecentralized

Computing

putersLower

CostsOpen

technologiesWorkstations1990’sDistributed

ComputingPeer-to-peer

networksStandard

HW&

OSEasy

to

integrateMore

robustBetter

performancePC’s,Workstations,&

Servers计算机网络的演变9Scan-

Based

I/O

AcquisitionComm.

IntensiveMultiple

Data

PathsFailure

remains

at

PLC

levelI/O

closer

to

the

field

deviceDecentralized

I/O

&

Processing1990’sFlex

I/ODrivePBPanelEvent-Driven

I/O

Acquisition(Change

of

State

orPeer-Peer)Less

Comm.

IntensiveFocused

data

pathsFailure

isolated

to

deviceMulti-disciplinedControllerDrive

w/PIDAxisControllerPB

PanelProxFlex

I/ODistributed

Control2000O.I.PackagedControllerLogic

only

in

controllerScan

-

Based

I/O

AcquisitionHighly

Comm.

IntensiveSingle

Data

PathSingle

Point

of

FailureCentralized

Control1980’s分布式控制的演变10网络在自动化中追求的效率Today’s

networks

operate

faster

than

ever

beforePure

speed

is

no

longer

the

issue

-

efficiency

isThe

more

efficient

your

network(s)

handle

data,

thehigheryour

throughput

-

the

greater

your

productivityExample:

Speed

limits

on

highways

have

been

increased,but

do

you

arrive

home

any

faster

during

“rush

hour”?11Producer/Consumer式源/目标方式源每次只能和一个目标通讯每次通讯都必须有应答的过程得到的速度是波特率Producer/Consumer

方式源发出信号，所有目标都是同时收到不须有应答过程得到的是数据率“The

time

is

8:00”15组态控制Producer

-

Consumer

ServicesNetLinx的三个

元素ControllerDrive1SensorDrive3Drive2Data

AcquisitionALLEN-BRADLEY7

8

94

5

61

2

3.

0

-<--------'<--F1

F2

F3

F4

F5F6

F7

F8

F9F10PanelView

550<>^vHMI源/目标控制方式例子og

I/O低效率

-

RIO,Profibus,

Interbus

SControllerDrive2

Drive3Data

AcquisitionALLEN-BRADLEY7

8

94

5

61

2

3.

0

-<--------'<--F1

F2

F3

F4

F5F6

F7

F8

F9F10PanelView

550<>^vHMIog

I/O

SensorDwrwi高效率NetLinx控制例子Change-of-State

-

Sensor

produces

data

only

when

object

is

present.Multicast

-

simultaneous

d

onsumption.Cyclic

- og

I/O

can

send

one

value

(pressure)

every

50

ms,

andanother

value

(temperature)

every

500

ms18组态控制NetLinx的三个

元素Producer

-

Consumer

ServicesControllerDrive1SensorDrive3Drive2Data

AcquisitionHMIog

I/OOnce

again,

very

inefficient,

lots

of

overhead源/目标

方式例子Masterhas

to

poll

to

collect

all

informationMaster

passes

data

through

control

Logic

toother

devices(

EN

)(

DN

)(

ERR

)MOVDest:

M1

Size:

32words|

/

|N23:5/00N22:1/06(

)(

)O.0.1/10|

|I.0.2/04(

EN

)(

DN

)(

ERR

)MOVDest:

M0

Size:

32

wordsVery

Efficient

use

of

network

and

controller

bandwidthNetLinx

例子ControllerSensorDrive1

Drive2

Drive3Devices

pass

broadcast

data

status

on

apredetermined

or

event

driven

operationAny

device

can

consume

the

data,

if

desiredReduce

messaging,

No

programmingData

AcquisitionHMIog

I/O(

EN

)(

DN

)(

ERR

)MOVDest:

M1

Size:

32words|

/

|N23:5/00N22:1/06(

)O.0.1/10(

)|

|I.0.2/04(

EN

)(

DN

)(

ERR

)MOVDest:

M0

Size:

32

words21控制NetLinx的三个

元素组态Producer

-

Consumer

Services源/目标组态方式例子ControllerSensorDrive1

Drive2

Drive3If

thenetwork

supports

Configuration,

often

it

isthrough

the

Master.Negatively

impact

Controlperformance,

as

theMaster

is

burdened

with

tasks

(Configuration)outside

itsmainfunction

(Control)If

Configuration

is

notsupported

onthenetwork

-point-to-point,

one

at

a

time

is

your

only

optionProgrammable

Device

SupportHMIog

I/O(

EN

)(

DN

)(

ERR

)MOVDest:

M1

Size:

32words|

/

|N23:5/00N22:1/06(

)(

)O.0.1/10|

|I.0.2/04(

EN

)(

DN

)(

ERR

)MOVDest:

M0

Size:

32

wordsVery

Efficient,

devices

communicate

directly

-

not

through

bottlenecksNetLinx组态例子ControllerSensorDrive1

Drive2

Drive3Programmable

Device

Support

PC’s

can

communicatedirectly

with

the

devicesThis

will

not

impact

Control

performance,

as

theMaster

is

not

burdened

with

tasks

(Configuration)outside

its

main

function

(Control)If

the

user

prefers,

Configuration

can

be

performedpoint-to-point

with

each

deviceProgrammable

Device

SupportHMIog

I/O(

EN

)(

DN

)(

ERR

)MOVDest:

M1

Size:

32words|

/

|N23:5/00N22:1/06(

)O.0.1/10(

)|

|I.0.2/04(

EN

)(

DN

)(

ERR

)MOVDest:

M0

Size:

32

wordsEthernetDeviceNetStation

MMI24vdc509

-BODModular

I/OBlock

I/OMicro

DriveControlNetNetLinx

结构ProgrammableDeviceSupport

PCMotor

StarterMicro

PLCOperator

InterfaceDriveServoGateway

or

Linking

DeviceGateway

or

Linking

DeviceMaintenance

PCDesktop

PC24RSLinxRSLinxNetlinxDaughtercards(inside

devices)Configure

and

Collect

Applicationsex.

RSNetWorx,

RSView24vdc509

-BOD25通讯方式分类

(Examples)Source/Destination

-

“the

classic

model”-

Profibus

DP-

Interbus

S-

Modbus-

et-

Remote

I/OProducer/Consumer

-

“the

new

model”Foundation

FieldbusControlNetDeviceNetControlbus

(ControlLogix

backplane)Profibus

PAAS-iModbus

PlusSeriplex-wHighwayPlusDH+DH485RIOInformationDiscrete

DeviceAutomation

and

ControlProcessDeviceRockwell

Automation–网络架构ERPMRP

IIMES/BatchMMI/SCADAControl

SystemDevices“Develop

&

Innovate”“Embrace

&

Extend”FixedControlProgrammableControlNetworkedManufacturingSystemsNetworkedBusiness

&ManufacturingSystemsInformationControl综合系统28Integrating

Control

and Information

from

theprocess to

enterprise

information

systemsDevice

LayerLevel

of

Data

IntegrationInformationControlAutomation

Scope

EnterpriseOpenInformation

LayerModularAutomation

LayerMachineEmbedded综合系统29Eth

netCommercial

Drivers

-

EthernetDefacto

standards

-

Internet, ,

file

exchangeEmbedded

in

many

PCs

todayInstalled

base

in

virtually

all

manufacturing

facilities

-breeds fort

levelOpen

technologyIncreased

capacity

and

(at

least

perceived)

performance31Evolution

of

EthernetRecent

evolution

of

technology

makes

Ethernet

moreappropriate

for

use

in

control

applications:Hubs

->

Switches10MB

->

100

Mb

Ethernet

->

(1Gb

Ethernet)Half

Duplex

->

Full

DuplexGrowth

of

Internet

and

Internet

related

software

toolsTrendtoward

integrating

business

systems

with

manufacturingsystemsHigh

commercial

volumes

continually

drive

costs

down

withrapid

evolution

of

the

technologies32Just

what

is

“Ethernet

for

Control”?“Ethernet

for

Control”

is

simply

its

use

for

anyapplication

which

would

historically

have

beenimplemented

with

a

traditional

control

network

such

asRemote

I/O,

ControlNet,

or

DeviceNetControl

interlocking

and

I/O

directly

on

EthernetOther

services

(e.g.,

programming,

data

acquisition,etc.)

included33Challenges

when

using

Ethernet

for

ControlSwitch

technologyactive

components

introduce

points

of

failurestar

topology

(vs.more

typical

bus

or

multidrop)Media

does

not

(generally)

meet

industrialspecificationsPhysical

protection

neededSecurity

issuesIsolation

and

firewalls

must

be

implemented!“Ethernet

is

not

Ethernet

is

not

Ethernet”Application

Layers

are

different

-

Don’t

assume

multi-vendorinteroperability!Collisions

of

messages

are

probabilisticEthernet

will

NEVER

be

collision-free

!!!34RA

EtherNet

Point

of

ViewCustomershave

been

using

Ethernet

for

control

interlockingbetween

processors

via

message

instructions

for

yearsGM/Sisco

performance

comparison

to

RIOEthernet

is

inherently

not

deterministic

but

introduction

of

switchtechnology

significantly

reduces

collisions

and

enhancesrepeatability

of

performanceUse

of

Ethernet

for

control

interlocking

and

I/O

is

acceptable

forapplications

where

response

time

variances

are

tolerableEthernet

is

simplya

media

choice

made

by

the

customer. We

willprovide

the

same

Producer/Consumer

control

services

that

aresupported

in

ControlNet

and

DeviceNet

today.Differences

in

the

datalink

layers

impact

capacity,

determinism,

topology,

etc35ApplicationsGeneral

Factory

AutomationPC-based

(Soft)

Control

ApplicationsHVACOEMsProcess

AutomationSCADA/RTU

MarketData

Acquisition

for

Instrumentation36RA

Approach

for

Ethernet

I/OStandard

Ethernet

TCP/UDP/IP

services

-

nothing

custom

or

proprietaryPoint-to-point

and

broadcast

supported.Cyclic

&

Change-of-State

I/O

Exchange

supported.No

scheduled

messagingGuidelines

will

be

given

to

customers:Switchesand

routers

shall

beused

to

partition

I/O

and

other

data

traffic.Put

controllers

andI/O

on

same

subnet

or

VLANOffice

(and

possibly

messaging)

traffic

restricted

from

I/O

networkPerformance

willbe

determined

by

how

the

customer

deploys

theEthernet-TCP/IP

network.Customer

must

decide

if

metrics

fall

within

tolerance

range

for

his/herapplication(s).37NetLinx

&

EthernetApplicationPresentationSessionTransportNetworkDataLinkPhysicalTCP/IPUDP/IPIEEE

802.3ISO

ModelControl,Configure,Collect

data38NetLinx

&

Ethernet

-

DetailApplication

[application

datamodel,

objects,

configuration,

etc.]NetLinx

ObjectsNetLinx

Network

&

TransportI/OmessagesExplicit

msgC-Net

encapsulationProtocol

(EPIC)UDPTCPIP

MulticastIPEthernet•Above

Layer

2,

same

as

ControlNetConnected

&

unconnected

data

sentover

Ethernet-TCP/IP

using

C-NetprotocolEPIC

layer

used

to

encapsulate

themessagesExtend

the

current

Ethernet/NetLinxarchitecture

to

support

I/O

connections39NetLinx

Services

Already

SupportedNetLinx

Services

To

Be

AddedNetLinx

Producer/Consumer

Services

-DeviceNetControlNetEthernet?1

ApplicationA

I/OB

Program

Upload/DownloadC

Messaging2

HierarchiesA

Master/SlaveB

Multi-masterC

Peer-to-peer3

I/O

ExchangeA

PolledB

CyclicC

Change-of

stateD

Time

Synchronization4

Connection

RelationshipsA

One-to-One

(Client/server)B

One-to-Many(Multicast)C

One-to-All

(Broadcast)D

Routable

Protocol40Ethernet

for

Control

-

Commercial

PositionCurrent

method

for

messaging

services

over

EthernetTCP/IP

is ed

in

the

ControlNet

InternationalspecificationAll

future

enhancements

are

via

Alternate

Media

SpecialInterest

Group

(SIG)

within

CI

•

Absolu

y

no

single-supplwi

nership41Initial

System

ArchitectureRSLogix

5000RSNetworxRSLinx10/100

Ethernetor

ATM

SwitchLogix

5550Processor

(FW)1756-ENET10/100Mb

Module1756

I/O1756-ENET10/100Mb

Module42Second

Phase

ArchitectureRSLogix

5000RSNetWorxRSLinx10/100

Ethernetor

ATM

SwitchLogix

5550ProcessorFlex

I/O1756

I/O1756-ENET10/100Mb

Module1756-ENET10/100Mb

ModuleSoftLogixIOLinxNetLinx

Daughtercardembedded

in

devicessuch

as

drives,

EOI,

etc.43Ethernet

-

MediaEstablishing

Industrial

requirements

for

cable

installationAnixterHirs

anEstablishing

relationships

with

commercial

communicationscompaniesCiscoLucent

TechnologiesBrand-label

or

reference

media

componentsPro r

reference

installation

services4445Advanced

Communication

Services

Deployed

onOpen

Network

TechnologiesATMFast

EthernetUniversal

Serial

BusFireWireInternet

/

IntranetProducer/Consumer

is

“Future-Ready”Continued

use

of

Commercial

Communication

Technologyand

Producer/Consumer

ServicesIntegration

of

commercial

andindustrial

technologieson

the

plant

floorReduced

installedcosts-

chips

&componentscommercially

availableShare

media

with

otherapplications

in

the

plant-

wiring

alreadyinstalledthroughout

facilityQuestions

to

Ask

Yourself

re:

Your

AutomationArchitectureDoes

my

system

provide

the

most

efficient

Controlcommunication?Can

I

use

Change-of-State

?Cyclic?Multicast?

have

to

program

my

controllers

to

handle

dataCollection

and

distribution? Or

can

my

devices

report

theirdata

independently?Can

I

Configure

devices

on

the

same

network

they

performcontrol?

Or have

to

configure

point-to-point?Can

I

see

all

the

components

in

my

system,

at

anytime,

fromanywhere?46Ethernet

DUAL

Stack

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ProtocolIPTransport

Control

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licensedNot

usedNot

usedAFS:

April

99IEEE

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from

legacy

PLC5EMSG

to

ControlLogixPLC5E,

Sidecar,

5/0547Core

Information

Network:

Ethernet

TCP/IPIndustry

defacto-standard

10

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network

for

data

transferUsed

by

the

Internet

(World

Wide

Web),

servicesMost

popular

choice

for

corpora AN

networksATM

&

High

speed

Ethernet

compatibleConnectivity

to

all

computer

manufacturers

and

softwareMost

media

types

supported–

twisted

pair,

coax,

fiber

optics,

RF,

salite,

etc.Corporate

Information

Backbone(100

MbitEthernet,

1

Gbit

Ethernet,

ATM)ATM

orEthernetSwitch100

Mbit100

Mbit100

Mbit100

Mbit10

Mbit10

Mbit100

Mbit100

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ControlNet,

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5/05

ControlLogixSwitch

or

HubSwitch

or

HubSwitched

EthernetStar

network

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node

has

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or

100Mbitbandwidth

availableIncreases

determinism

of

the

networkDecreases

collisions

on

the

networkData

emrver49RSView™MMI

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w/

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DeviceAutomation

and

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and

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Network

RequirementsReal-time

performanceDeterministic

and

repeatableController-to-controller

interlockingPeer-to-peer

messagingConnectivity

to

PLCs,

PCs,

MMI,

Drives,

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CNC,

I/O,

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&

device

configuration

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Automation

and

Control

Networks:Data

Highway+,

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Highway

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industry

standards

with

over

3

million

nodesinstalled

world-wideOver

100

third

party

participants

through

technology

sharingin

the pass

ProgramEasy

to

use

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cost

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peer-to-peer

and

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networksRockwell

Automation

products

include: SLC,

PLC,

&MicroLogix

processors;

Flex

&

Block

I/O

families;

motioncontrollers;

configuration,

programming

&

MMI

s/w;

drives;power

products;

media;

computer

interfaces;

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and

logic

components控制

性高速(5

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网络I/O控制对等通讯高级的网络能力确定性–确定数据何时传送有些设备加入或退出网络多主,多点输入,对等重复性–传送次数不变Producer/Consumer模式:灵活的安装选项主干网上的设备可随意放，无物理位置限制介质冗余同一网络上可支持99个节点控制

性灵活的控制系统结构用于编程和I/O通讯是同一个网络网络可从任何一个节点连入-包括适配器简单的用户配置–用户可选控制和I/O更新速率节点的增减不影响更新与 机架通讯不须做块传送反馈–

带宽利用的开放的网络由中立组织管理技术对所有的自动化厂商开放逻辑控制器(e.g.

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control

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