introduction to dcs abb 800xa
TRANSCRIPT
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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
Communication interface
Communication interface
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
Communication interface
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
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#
4peration an maintenance of 800XA DSC
4peration an maintenance of 800XA DSC
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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
4peration an maintenance of 800XA DSC
4peration an maintenance of 800XA DSC
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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
4peration an maintenance of 800XA DSC
4peration an maintenance of 800XA DSC
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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
4peration an maintenance of 800XA DSC
4peration an maintenance of 800XA DSC
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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
4peration an maintenance of 800XA DSC
4peration an maintenance of 800XA DSC
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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
4peration an maintenance of 800XA DSC
4peration an maintenance of 800XA DSC
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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