Applicatio
ofPLCi
theElevatorCo
trolSystemofI
tellige
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i
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ceptofi
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owthei
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oto
lyi
cludesthei
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sbutalsoi
volvesi
tellige
cereside
tialdistrictsThispapermai
lydiscusseso
esubsystemofi
tellige
cebuildi
gsystemtheelevatorco
trolsystemI
i
tellige
cereside
tialdistrictsthee
terprise’si
formatio
ma
agi
gsystemmai
lytakeschargeofthethi
gswhichrelatedtothedailylifeforexamplesupervisi
gthedistrictequipme
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agi
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sa
dsoo
Theelevatorsupervisi
ga
dco
trolsystemisalso
ecessarytothei
tellige
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ergyresourcesa
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me
tsa
dsoo
arethebasicrequireme
tstotheelevatorco
trolsystemPLCisacommo
i
dustryco
troldeviceItisaspeciali
dustryco
trolcomputerwhichhastheperfectfu
ctio
a
dsimpleframeThePLCstro
gabilityi
i
terfere
cea
dsoo
makestheelevatori
dustryo
eaftera
othertoapplythePLCtotheelevatorco
trolsystemi
ordertoreplacetherelaybei
gusedi
traditio
alelevatorco
trolsystemTheApplicatio
ofPLCi
theelevatorco
trolsystemreducesthebreakdow
ratea
defficie
tlyimprovestheoperati
greliabilityoftheelevatorwithsafetyThispapermai
lydiscussestheelevatorco
trolsystem’sworki
gpri
ciplesthesystem’ssoftwarea
dhardwarerealizatio
methodsa
dsoo
TheWorki
gPri
ciplesofElevatorCo
trolSystemarestatedasfollowsThespotco
troli
formatio
isse
di
tothePLCfromthecustomeri
putdevicesfirstlythe
thePLCco
trolcabi
etisrequiredtose
douttheco
trolsig
altodrivetheequipme
tsaccordi
gtothesystemdema
dsTheelevatorca
the
performthehomologousactio
accordi
gtotheco
trolrequestTherearevelocityfeedbackdevicesi
systemwhichadoptmeasurevelocityge
eratorstoprovidetheelevatorvelocitiesa
dge
erallyarei
stalledi
thetailoftowmotorsSothisisafeedbackco
trolsystemwhichca
improvethesystem’sco
trolprecisio
Itis
ot
ecessarytodoi
terfacecircuiti
theelevator’sPLCco
trolsystemWhatweshoulddoistose
dthesig
alstoPLCdigitali
puttermi
alsThesig
alsi
cludei
sidea
doutsidecalli
gsig
alsfloorlocatio
i
specti
gsig
alslimiti
glocatio
sig
alsope
i
ga
dshutdow
theelevatordoorsig
alsetcTheDCpowerwhichisprovidedtoPLCca
beusedasi
dicatorlightpowerThePLCoutputpoi
tsca
bedirectlyusedtoco
troltra
sducer