introduction to dcs abb 800xa

7/25/2019 Introduction to DCS ABB 800XA

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Morupule B

4 X150MW CFB

I&C Training Material

Power Station


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DCS

DCS

ABB Symphony 800XA DCS system


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General overview With the increasing of unit capacity an parameter! the thermoynamicsystem "ecomes more complicate! an the regular instrument aninepenent control evice an switches are not enough to process suchlarge amount of information an orers# $herefore! from %&'0s! manycountries start to apply the electronic computer technology to the

monitoring an control of power plant# $he early computer control systemuses integrate computer control system to gather up the inication!operation an control for hunres of control circuit an thousans ofproceure varia"le on one computer! so it has a fatal isavantage(angers are centrali)e#

$ill %&*0s! the manufactures all over the worl prouce ifferent DCSsystems which are applie in the power plant wiely#

%&&0s! almost all the power plants have aopte ifferent DCS systems#

DCS


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DCS refers to ecentrali)e control system! which is a new control system

that com"ines computer technology! control technology! communicationtechnology an C+$ technology to monitor! control! operate! an managethe prouction process# $he feature is ecentrali)e control an integratemanagement#

$he monitor function an each control function can share information witheach other "y ata an information communication with networ, or "us"ar!an can connect with the whole plant management computer "y interfaces#

DCS is usually mae up of integrate monitor an management partsecentrali)e control part! an communication part# Among which! theintegrate monitor an management part is locate in the central controlroom! through which! the operator can use C+$ to achieve -an.machineinteraction so to monitor! control! operate! an manage the operationprocess

DCS


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"usiness management stage

/rouction management stage

/roceure management stage

inal control stage

Batch process

1thstage

2rstage

3 stage

% stage

4n.site e5uipment

%# 6ayere architecture of DCS system

DCS

Continue process ecentrali)ing process


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3# Composition of DCS system

DCS


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DCS

2# 7etwor, of DCS system


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DCS

1# Composition of local control ca"inet


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1# Composition of local control ca"inet# -ain control unit( also calle as main controller! usually is %(% reunancy

configuration! communicate with each intellect 9:4 moule with fiel"us

'# /ower moule( the power moule has unit moular structure! supply powerto control unit an local 9:4 moule! form non.interference switching moeof reunancy configuration# Common use(DC31; 18;#


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# Common 9:4 moule(

A9( Analogue input( receive DC1@30mA signal ! or signal from $C or +$D onsite

A4( Analogue output( DC1@30mA signal

D9 Digital 5uantity input( receive contact.type switch 5uantity signal on site

D4 Digital 5uantity output( output passive contact.type switch 5uantitysignal

DCS


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'# Composition of BasicController

C/ (

-emory

Communication interface

9nput:output channel

4ther functional

components

Data highway

9nternal "us

C/ -emory

memory

/rouction process

4ther

components



DCS


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#C/ ( 9t is the ,ey part of "asic control! the ata processing an

control center of controller# $he C/ functional components can ocalculation an program of information in the re.set cycle an

proceure! as well as operate! control an failure iagnosis to the

internal functional components of controller# 9n orer to guarantee

the relia"ility of system! the C/ can aopt %(% reunancy

configuration##-emory 9t is use to store the stanar algorithmic routine!

supervising program! self.iagnosis program of controller! an the

configuration of user! an "asic controller ata"ase#

DCS


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# Communication interface it mainly inclues three parts( parallelata input:output port


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7# Wor,ing process of DCS system

$he proceure parameter from local sensor an transmitter will "ecollecte an processe "y ifference functional moule! then

converte into igital signal which can "e receive "y the computer# $he

igital signal will "e isolate "y the optically couple circuit an sent to

controller station via ata "us

$he "asic controller in control station will output the control signal after

processing! "ase on the pre.set action laws! to control the prouction

process "y actuating mechanism#

$he proceure information will "e sent to the operation station via ata

highway in the control circuit# $he operator can change the setting

value an control moe of each control circuit with the input evice such

as ,ey"oar an mouse! i# e# via the ata highway! the control station

can receive the neee orer an information sent from operation

station for optimi)ing the control#

or the proceure parameter not participating in the control! it will "e

sent to the operation station via ata highway to achieve isplay! alarm

an recor#

DCS


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8# 4verview of networ, structure

Decentrali)e control system can reali)e the communication "etweeneach internal unit through 6A7#

Structure( "us type an ring networ,#

Common communication protocol( $C/:9/ protocol

/rofi"us! CA7! -oBus! A+$ for local "us "etween "asic controlleran 9:4 moule#

Connect the ifferent control unit with communication lin,! then it will

form the ecentrali)e control system# $he connection point in this

system is calle as station#

$he topology refers to the connection metho "etween stations# $he topology forms( "us! ring! star! tree! an networ,#

DCS


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transmission meium# $wiste pair( refers to two twiste leaing wire in together# $here is

insulation meium "etween the two wires to control the clearance! sothe wire can meet the re5uirement for transmitting high fre5uencysignal# $he twiste pair use for computer networ, is shiele two

conuctor or four conuctor type## Coa?ial ca"le( use to transmitting electric signal with lower

fre5uency


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DCS

%0#DCS system grouning:earthing


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ABB 800XA DCS system

General overview of 800XA system 800XA intellect automation system from ABB#

4peration an configuration of Continuous control system an Eo".lotcontrol

1980

1987

199

199!

00"

#$olutiont%roug%

#n%ane'ent

IndustrialIndustrial ITIT

System 800xASystem 800xA


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-ain function in the power plant9t can achieve the control function of following systems(

-CS( moulation control system DAS( Data ac5uisition system SSS( urnace safeguar supervisory system SCS( se5uence control system D>( igital electrohyraulic system >CS( electric control system

B/S( "ypass control system4perator can monitor the prouction process through --9 Display operation real.time an historical tren Alarm 4peration log /erioical log >vent log S4> log Alarm log

800XA DCS


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$wo ifferent harware configuration( B+C@100 as main controllers ( D>!>$S AC800- as main controller(

-CS!DAS!SSS!SCS!>CS!B/S

800XA DCS


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%#DCS net structure

C# W

4 net

C net

9:4 X#B

79S7/-

B+C100

800XA DCS(BC+.100

4peration 7etwor,4net

Control 7etwor, Cnet

Control way C#W

9:4 >?pansion Bus X#B


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3# -ain component of local control ca"inet -echanical installation component ca"inet! moule installation

unit! local terminal "oar

Data communication component control way! 9:4 e?pener

"us /roceure control component communication moule!

controller! 9:4 moule

6ocal connection component terminal unit! pre.fa"ricateca"le

-oule power.supply system

800XA DCS(BC+.100


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800XA DCS(BC+.100


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800XA DCS(BC+.100

2# 9ntrouction of main moules#main controller B+C@100

igh performance! large capacity

proceure parameter processor

Aopt +9SC microprocessor technology

23 "it inustrial


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800XA DCS(BC+.100

#9:4 mouleA9( Analogue input

A4( Analogue output

D9 Digital 5uantity inputD4 Digital 5uantity output


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5uipment supplie with power"y this system

# C communication moule

# C controller moule

# C 9:4 moule

# 6ocal evice connecte to C

800XA DCS(BC+.100


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# eature of power supply system

-oular structure! 37 reunancy

Better power factor aEusting( 0#&

+eplacea"le power supply an fan

/ower supply monitoring function Be a"le to irectly connect with %30:310;AC or %3;DC e?ternal

power supply

$he ou"le e?ternal power supply can "e inputte in mi?ing uner37 reunancy structure

$he loa is "orne "y all the power supply moules together

800XA DCS(BC+.100


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type name escription

control B+C100 C/# %'0-)# 23"it

9-AS9

9->C

9-AS4

9-DS9

9-DS4

9-DS-

9-+94

S4>

moule

%' way analogue input $C +$D

% way analogue input (1@30mA

%1 way analogue output (1@30mA

%' way switch 5uantity input( 31;DC 18;DC %3;DC %30;AC

%' way switch 5uantity output( 31;DC 18;DC

8 way impulse input

+emote 94 interface moule

9-S4>

9-S>$

9-S>D

S4> server ,it

%' way event se5uence igital input moule

%' way event se5uence synchroni)ation moule

-ain common use moule

800XA DCS(BC+.100

General

moule


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type name escription

D>moule

>lectric

moule

9-CS

9-SS

9-C--

9-$AS

re5uency computer

re5uency response range(%)....%3#,)

yraulic servo moule( reunancy 6;D$ inputControl output( control reunancy ou"le.coil servo valve

Control current range(F8..F'1mA

Status monitoring moule( monitor the shaft vi"ration!

eccentricity! a?ial isplacement

1 measurement channel! receive the

isplacement! acceleration ! spee signal

$ur"ine auto synchroni)ation moule

AC input generator:wire voltage 0@ or 0@%0;AC

800XA DCS(BC+.100


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800XA DCS(AC800


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800XA DCS(AC800


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C4-/4S9$947 4 C47$+46 CAB97>$

800XA DCS(AC800


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()*+W)*#

Status inication

/ush "utton

+C connector

Status inication


Baseplate

>thernet aress

S7

4uter "attery slot

4ptical ca"le interface

/rocessor( -8'% A7D $/820

800XA DCS(AC800


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9nner "attery

C/ moule

"aseplate

Slot for power supply an signal

monitoring


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800XA DCS(AC800

/+9-( yellow ! DA6(

flash/rimary is in service

Bac,up is in synchroni)ation

DA6 ( yellow! /+9-( offBac,up C/ is in service!

+eunancy C/ status inication


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S


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800XA DCS(AC800


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800XA DCS(AC800


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9:4 moule


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%##n$iron'ent re,uire'ent


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3# /ower supply system(


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2# 4peration an maintenance

# 4peration of DCSa# DCS shoul "e a"le to put into service relia"ly accoring t t0 to

unit re5uirement# During the operation of unit! the ata cannot "eownloae from DCS#

"# 9f there emergency conition an have to ownloa! must applyan issue DCS inspection an maintenance wor,ing application

sheetc# 4nly the authori)e staff in aministrator level can operate the

system

# $he special DCS operation log shoul "e forme for the C:9iscipline! to recor the operation conition an a"normalconitions! cause! hanling process an metho of DCS in etail#

e# $he C:9 staff shoul "e familiar with the software an harwarestructure! an the configuration of each functionL ,now well a"outthe various of efect an fault an the hanling methoL inspectionan maintenance of DCS uring operation#

4peration an maintenance of 800XA DSC



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# 4nce per ay for the patrol inspection of DCS uring

operation! incluing the following itemsa# Chec, the temperature an humiity of electronic room

"# Chec, the fan conition of control ca"inets an operation station!

ma,e sure the filter of fan is clean an intact! the temperature insie

the ca"inet meets the manufacturerMs re5uirement#

c# Chec, the status inication light for power moule insie the ca"inet!ma,e sure the power system is wor,ing normally with normal voltage#

# Chec, the status inication light for communication moule insie the

ca"inet an operation station! ma,e sure the communication of each

station is

e# Chec, the status inication light for control processing moule insiethe! ma,e sure the wor,ing an communication status is normal

f# Chec, the channel status inication light for 9:4 moule insie the

ca"inet! ma,e sure the channel is wor,ing normally#




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g# Chec, whether the reunancy moules have switching! if thereis switching! fin out the cause! hanle the failure! an ma,e the

system "ac, to normal#h# Chec, the wor,ing conition of each part of DCS use the self.

iagnosis function of DSC

i# Chec, whether the e5uipment of operation station! engineerstation an each terminal ens are wor,ing normally

E# Chec, whether the cloc, in each operation an control station iscorrect an synchroni)e

,# Chec, whether there is changing in the set level anmanagement scope of each operation station




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# Daily maintenance of ABB 800XA DCS%=# Common e5uipment an tools for maintenance Antistatic vacuum cleaner

Clean an soft cloth which is not easy to have wool falling.off#

Compresse air

Screwriver specifically use for terminal

Sophisticate electronics cleanser

7atural har "rush

Specifie nipper pliers

/recise multimeter

Signal generator 00; megameter




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3= 9nspection an maintenance of D/


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2=# Daily maintenance of engineer an operation station

technical re5uirement(

System time( ifferent stations must "e in the same status an

inicates rightL

System point irectory( uni5ueness an correctnessL

Configuration iagrams can "e normally importe! moifie!

e"ugge! ownloae! an safely operate# /oint information( normal moification function#

e5uipment inspection( Chec, an ma,e sure the mainframe! monitor! ,ey"oar! mouse!

printer! the communication ca"le are connecte well

/ower supply to each e5uipment is normal( 330;AC 0 $he engineer station is clean! temperature is 30 38

$he function of ,ey"oar an mouse is normal




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System conition inspection(

$he graphics of monitor is sta"le! the icon is complete an ingoo arrangement

$he menu is complete! an function is normal

$he status inication for each wor,ing station is normal

$he communication "etween each station is normal

System "asic function inspection( $he on.line : off.line moifying of configuration iagram an own

loa function is normal

$he ynamic isplay function is normal

$he proceure monitor an control function is normal

Alarm management function is normal System iagnosis function is normal

Data ac5uisition an ta"ling function is normal




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-aintenance of engineer station(

Change the passcoe perioically an ma,e goo recor

Bac,up the contents of the station perioically

$est the operation conition of networ,! if there is wrong

conition! correct it in time

-aintenance of operation station(

Clean perioically

Chec, the operation conitions an ma,e recor perioically

Chec, system time an ma,e correction perioically

Chec, the wor,ing conition an printing 5uality of printer

perioically Chec, whether the color an si)e of graphics in monitor is normal




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/erioical maintenance for peripheral e5uipment

Chec, the printer once a wee,! ma,e sure the printing is goo

an clean! spare paper is enough#

Chec, an ma,e sure the ,eys on ,ey"oar are fle?i"le! no ea

,ey an ,ey loss! the ,ey"oar is clean! no irt Clean the mouse once a wee,! ma,e sure it is fle?i"le

Clean the computer es, once per ay to ma,e sure the whole

computer system is tiy without ust#

p

introduction to dcs abb 800xa

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