PLC vs DCS: Qhov txawv qhov tseem ceeb, Thaum twg siv Txhua, thiab Yuav Xaiv Li Cas (2026 Tus Neeg Yuav Khoom Qhia)

PLC tswj cov tshuab thiab cov txheej txheem sib cais. Lub DCS tswj cov txheej txheem tas mus li thoob plaws tag nrho cov nroj tsuag. Qhov ntawd yog cov lus teb luv luv, tab sis nws tsis yog tag nrho cov duab ntxiv lawm, txij li PLCs niaj hnub tam sim no tuav cov haujlwm txheej txheem uas tau siv los koom nrog DCS ib leeg, thiab hybrid architectures tau dhau los ua ib qho ntawm cov haujlwm tshiab. Xaiv qhov yuam kev tsis yog qhov yuam kev me me thiab. Nws tuaj yeem txhais tau tias them nyiaj rau lub peev xwm koj tsis siv, lossis tsoo lub phab ntsa scalability ib nrab ntawm kev cog qoob loo.

Cov lus qhia no mus ntxiv dua li feem ntau sib piv hauv online. Peb piav qhia txog qhov sib txawv ntawm cov txuj ci tiag tiag, pab koj txiav txim siab seb qhov twg haum rau koj cov txheej txheem, thiab taug kev koj los ntawm kev xaiv hom thiab qauv, xaiv kev tsiv teb tsaws chaw, thiab yuav ua li cas los tsim cov khoom zoo yam tsis muaj kev ncua. Yog tias koj yog ib tus kws tshaj lij qhia txog qhov system lossis tus neeg yuav khoom npaj cov lus tsocai, koj yuav tsum ua raws li tsab xov xwm no, tsis yog nkag siab nws xwb.

Cia peb pib nrog 30 cov lus teb thib ob.

PLC vs DCS ntawm ib sab

Teb ceev:PLC (Programmable Logic Controller) yog ib qho kev sib cog lus, ceev tswj tau tsim rau kev txiav txim siab thiab tshuab qib automation, xws li cov kab ntim khoom thiab cov khoom siv. A DCS (Distributed Control System) yog lub network ntawm cov tswj tau tsim los rau cov txheej txheem loj, txuas ntxiv mus, xws li refineries thiab fais fab nroj tsuag, nrog rau kev ua kom redundancy thiab cog kev sib koom tes dav. Kev ua haujlwm me me rau nruab nrab, sib cais lossis ua haujlwm ua haujlwm feem ntau nyiam PLC. Cov txheej txheem loj, nruam, kev nyab xeeb feem ntau nyiam DCS.

Tam sim no cia peb rhuav txhua tus.

Dab tsi yog PLC thiab Dab tsi yog Qhov Zoo Tshaj Plaws

PLC ua haujlwm li cas

PLC khiav ib lub voj voog rov ua dua: nws nyeem cov tswv yim los ntawm cov sensors thiab cov keyboards, ua tiav cov logic, tom qab ntawd hloov cov khoom tawm mus rau actuators, tag nrho hauv milliseconds. Qhov luv luv, txiav txim siab lub sijhawm luam theej duab yog dab tsi ua rau PLCs ntseeg tau sai, rov ua haujlwm zoo li kev txheeb xyuas, ntsuas ntsuas, thiab kev cuam tshuam kev nyab xeeb. Feem ntau PLCs yog programmed siv IEC 61131-3 hom lus, feem ntau yog ntaiv logic, uas yog vim li cas lawv tseem yog tus qauv xaiv rau lub tshuab tsim thiab tu pab pawg uas yuav tsum tau nyeem thiab kho cov logic sai sai rau hauv pem teb cog.

Qhov twg PLC haum zoo tshaj plaws

PLCs yog cov cuab yeej tsim nyog thaum cov txheej txheem tsis tu ncua ntau dua li txuas ntxiv: cov kab ntim khoom, cov tshuab conveyor, palletizers, CNC kev koom ua ke, thiab kev tswj lub tshuab standalone. Lawv yog cov compact, raug nqi ntawm me me I / O suav, thiab yooj yim los nthuav ib module ntawm ib lub sij hawm. Yog tias koj automating ib lub tshuab, ib lub xov tooj ntawm tes, lossis ib txoj kab nrog ob peb puas I / O cov ntsiab lus, PLC yuav luag ib txwm ua tau zoo dua DCS ntawm tus nqi thiab yooj yim. PebPLC modulesnpog raws nraim qhov no, los ntawm compact CPUs mus rau expandable I/O racks.

DCS mus txog tib lub hom phiaj automation nyob rau hauv ib txoj kev sib txawv heev.

DCS yog dab tsi thiab nws yog qhov zoo tshaj plaws ntawm

DCS ua haujlwm li cas

A DCS tsis yog ib tus tswj hwm tab sis yog ib lub network ntawm cov tswj tau faib lub cev thoob plaws ib tsob nroj, txhua tus tuav ib ntu ntawm cov txheej txheem, txhua qhov kev sib koom tes los ntawm cov chaw tsim khoom, chaw nres tsheb, thiab cov keeb kwm hauv nruab nrab. Cov qauv no tshwm sim vim cov txheej txheem tas mus li, xws li distillation, combustion, lossis tshuaj tiv thaiv cov tshuaj tiv thaiv, cia siab rau PID loops uas yuav tsum khiav lag luam ntseeg siab 24 teev hauv ib hnub yam tsis muaj kev cuam tshuam. Redundant controllers thiab networks txhais tau hais tias yog tias ib qho tsis ua haujlwm, cov txheej txheem tseem khiav.

Qhov twg DCS haum zoo tshaj plaws

DCS platforms dominate industries uas downtime tsis tshua kim los yog txaus ntshai: roj thiab roj, tsim hluav taws xob, tshuaj ua, thiab dej kho. Cov nroj tsuag no xav tau kev cog kev pom dav dav, kev sib koom ua haujlwm nruj, thiab ua kom rov ua dua uas ib leeg PLC network tsis tau tsim los muab rau ntawm qhov ntsuas ntawd.

Yog li cas PLC thiab DCS yeej sib txawv, taw tes los ntawm taw tes?

PLC vs DCS: Cov Ntsiab Lus Sib txawv tau piav qhia

Kev tsim vaj tsev

Lub kaw lus PLC feem ntau yog nruab nrab lossis tsim los ntawm cov racks me me, thaum lub DCS tau muab faib ua ke, nrog cov tswj tau muab tso rau ze ntawm cov txheej txheem lawv tswj. Qhov no txhais tau li cas rau koj qhov kev yuav khoom: ib qho kev faib tawm ntxiv cov khoom siv kho vajtse thiab cov xaim hluav taws xob ua ntej, tab sis nws cais qhov tsis raug rau cov ntu me me, uas tseem ceeb yog tias koj cov txheej txheem tsis tuaj yeem ua rau tag nrho kaw.

Tswj hom

Qhov no yog qhov txawv tshaj plaws. PLCs ua tau zoo ntawm qhov tsis sib xws, kev sib txuas lus sib txuas (rau / tawm, ua haujlwm ib kauj ruam), thaum DCS platforms tau tsim nyob ib puag ncig txuas ntxiv, analog PID tswj. Xav txog cov kab ntim khoom, uas pib, nres, thiab ntsuas hauv cov kauj ruam tsis sib xws, piv rau kab distillation, uas yuav tsum tuav qhov kub thiab txias hauv qhov nqaim tsis tu ncua. Qhov no txhais li cas rau koj qhov kev yuav khoom: yog tias koj cov txheej txheem feem ntau discrete nrog ob peb analog loops, PLC nrog PID muaj nuj nqi thaiv feem ntau txaus. Yog tias feem ntau ntawm koj cov txheej txheem khiav ntawm kev tswj tsis tu ncua, DCS yuav daws nws nrog qhov kev cai qis dua.

Programming thiab Configuration

PLCs yog programmed siv ntaiv logic, muaj nuj nqi thaiv daim duab, los yog cov ntawv sau raws li IEC 61131-3. DCS platforms lean ntau dua ntawm cov qauv raws li kev teeb tsa, qhov twg cov qauv kev ua haujlwm thaiv tau sib sau ua ke ntau dua li cov kab los ntawm kab. Qhov no txhais tau li cas rau koj qhov kev yuav khoom: PLC programming feem ntau yuav tsum muaj lub sijhawm tshwj xeeb engineering tsawg dua rau cov haujlwm me me, thaum DCS teeb tsa txo qis kev siv zog ntawm cov nplai loj vim tias ntau ntau yog templated thiab rov siv dua thoob plaws cov nroj tsuag.

Scalability thiab I / O suav

Ib qho PLC system feem ntau ua haujlwm ob peb puas mus rau ob peb txhiab I / O cov ntsiab lus ua ntej koj yuav tsum tau ntxiv PLCs networked lossis txav mus rau qhov sib txawv. Lub DCS yog tsim los ntsuas los ntawm ntau txhiab mus rau kaum tawm txhiab tus I/O cov ntsiab lus yam tsis muaj kev kho dua tshiab. Qhov no txhais tau li cas rau koj qhov kev yuav khoom: yog tias koj cia siab tias cov nroj tsuag yuav loj hlob nyob rau tsib mus rau kaum xyoo tom ntej, pib nrog DCS, lossis PLC thiab SCADA architecture nrog cov chav nthuav dav meej, yuav txuag koj tus nqi rov qab -platforming project tom qab.

Kev ntseeg tau thiab rov ua dua

DCS platforms feem ntau yog tsim los nrog cov tswj tsis tu ncua, cov khoom siv hluav taws xob, thiab cov tes hauj lwm raws li kev coj ua, yog li ib qho kev kho vajtse tsis ua haujlwm tsis ua haujlwm. PLCs tuaj yeem teeb tsa rau redundancy, tab sis feem ntau nws yog ib qho kev xaiv ntxiv es tsis yog lub neej ntawd. Qhov no txhais li cas rau koj qhov kev yuav khoom: yog tias ib teev ntawm lub sijhawm poob nqi ntau dua li tus nqi them rov qab, them rau nws. Rau feem ntau cov kab sib cais, tus qauv PLC kho vajtse nrog kev tiv thaiv zoo yog txaus.

Cybersecurity Considerations

Qhov no yog qhov feem ntau cov kev sib piv hla. Ib qho, hauv nruab nrab PLC tswj cov txheej txheem tseem ceeb tuaj yeem dhau los ua ib qho kev tsis ua haujlwm yog tias muaj kev cuam tshuam, vim tias ib qho ua txhaum cai tuaj yeem cuam tshuam rau tag nrho cheeb tsam tswj. Ib qho zoo segmented DCS, nrog cov tswj faib thiab cov cheeb tsam sib cais, tuaj yeem muaj kev ua txhaum cai rau ib feem me ntawm cov nroj tsuag. Qhov no txhais tau li cas rau koj qhov kev yuav khoom: yog tias koj xaiv PLC raws li kev tsim qauv rau cov txheej txheem loj, pob nyiaj siv rau kev sib txuas kom raug thiab muaj hluav taws xob muaj hluav taws xob ntau dua li kev cia siab rau tus tswj hwm ib leeg.

Tus nqi qauv

PLC systems feem ntau muaj tus nqi qis dua thiab ntsuas tus nqi kwv yees nrog tus lej ntawm I / O cov ntsiab lus thiab cov qauv ntxiv. DCS cov tshuab muaj peev txheej pib ua haujlwm siab dua hauv engineering, ntawv tso cai, thiab kev tsim kho vaj tse, tab sis tus nqi ntawd kis tau zoo dua thoob plaws cov nroj tsuag loj thiab nyuaj. Qhov no txhais tau li cas rau koj qhov kev yuav khoom: tus lej tiag tiag nyob ntawm ntau yam ntawm hom thiab qauv, uas yog vim li cas qhov kev sib piv hom tom qab hauv phau ntawv qhia no tseem ceeb npaum li qhov kev txiav txim siab ntawm architecture nws tus kheej.

Tab sis nyob rau hauv cov nroj tsuag niaj hnub, cov kab no yog qhov muag plooj.

PLC vs DCS vs SCADA vs PAC: Lawv Li Cas

Qhov twg SCADA Fits

SCADA feem ntau tsis meej pem nrog PLC thiab DCS, tab sis nws ua haujlwm ntawm ib txheej sib txawv kiag li. SCADA yog tus saib xyuas thiab saib xyuas cov txheej txheem uas sau cov ntaub ntawv los ntawm PLCs lossis DCS cov tswj hwm thiab nthuav tawm rau cov neeg ua haujlwm; nws tsis hloov ib qho raws li qhov tseeb tswj txheej. Ib tsob nroj tuaj yeem khiav PLCs rau kev tswj hwm thiab SCADA rau kev pom thiab keeb kwm kev nyiam nyob rau sab saum toj ntawm lawv.

PAC thiab Hybrid Architectures

PAC (Programmable Automation Controller) muab PLC style kho vajtse nrog kev ua haujlwm siab dua thiab muaj peev xwm sib txuas lus, kaw ntau qhov sib txawv ntawm keeb kwm nrog DCS. Raws li qhov tshwm sim, ntau qhov nruab nrab cov txheej txheem txuas ntxiv uas ib zaug xav tau tag nrho DCS tam sim no tuaj yeem khiav ntawm PLC lossis PAC ua ke nrog SCADA, ntawm tus nqi qis dua. Qhov no yog vim li cas PLC piv rau DCS kev txiav txim siab tsis yog ib qho kev nruj lossis kev xaiv lawm; nws nce nyob ntawm cov txheej txheem teev, pob nyiaj siv, thiab ntau npaum li cas cog kev sib koom tes uas koj xav tau tiag tiag.

Nrog cov toj roob hauv pes ntshiab, ntawm no yog yuav ua li cas txiav txim siab tiag tiag.

Thaum Yuav Siv PLC vs DCS: Qhov Kev Txiav Txim Siab

Nug koj tus kheej tsib lo lus nug no ua ntej qhia qhov system:

1. Puas yog cov txheej txheem feem ntau discrete lossis txuas ntxiv?Feem ntau discrete nyiam PLC. Feem ntau tsis tu ncua nrog ntau qhov sib cuam tshuam loops nyiam DCS.
2. Dab tsi yog koj qhov tseeb I / O suav, suav nrog kev nthuav dav yav tom ntej?Raws li kwv yees li 1,000 txog 2,000 cov ntsiab lus, PLC feem ntau yog txoj kev yooj yim dua thiab pheej yig dua. Ntxiv rau qhov ntawd, DCS zam kev rov tsim dua yav tom ntej.
3. Tus nqi qis npaum li cas yog qhov tsis tau npaj tseg?Yog tias qhov kev kaw nqi ntau dua ib teev ntau dua li tus nqi them rov qab, lean mus rau DCS qib redundancy, txawm tias dhau los ntawm DCS tiag tiag lossis rov ua dua PLC thiab SCADA teeb tsa.
4. Koj puas xav tau kev cog kev sib koom tes thoob plaws ntau cov txheej txheem?Yog tias cov chaw sib txawv yuav tsum ua haujlwm ua ke hauv lub sijhawm tiag tiag, DCS tsim los ntawm kev sib koom ua ke yuav txuag tau qhov tseem ceeb ntawm kev tsim khoom.
5. Koj lub qab ntug expansion yog dab tsi?Ib tsob nroj uas xav tias yuav loj hlob zoo hauv tsib xyoos yuav tsum tau tsim kho rau qhov kev loj hlob ntawm hnub ib.

Lub rooj txiav txim ceev

Ntawm no yog li cas uas plays tawm kev lag luam los ntawm kev lag luam.

PLC vs DCS los ntawm Kev Lag Luam: Yam Yuav Xaiv

Yog tias koj cov nroj tsuag khiav Siemens hardware hauv ib puag ncig hnyav, peb qhov kev kawm txogSiemens PLC hauv kev tsim cov cementtaug kev los ntawm lub preheater tiag tiag, kiln, thiab ua tiav zeb automation project, nrog rau yuav ua li cas PLC raws li qhov system tau commissioned nrog rau DCS uas twb muaj lawm. Nws yog ib qho tseem ceeb nyeem ntxiv yog tias koj xav pom qhov kev txiav txim siab no siv rau cov txheej txheem txuas mus ntxiv tsis yog hauv kev paub daws teeb.

Thaum koj tau xaiv hom, cov lus nug tom ntej yog hom twg.

Xaiv txoj cai hom thiab qauv

Qhov kev txiav txim siab architecture tsuas tau txais koj ib nrab. Hom thiab qauv txiav txim siab tus nqi tiag tiag, lub sijhawm ua haujlwm, thiab yooj yim npaum li cas koj pab neeg tuaj yeem txhawb nqa qhov system rau xyoo tom ntej.

Saib dhau ntawm daim ntawv spec. Tshawb xyuas cov txheej txheem kev sib raug zoo nrog koj lub network uas twb muaj lawm (Profinet, EtherNet/IP, Modbus, OPC UA), kev txhawb nqa hauv zos, muaj cov khoom seem, thiab cov sij hawm ua cov khoom siv tiag tiag, tsis yog sau nqi xwb. CPU kim dua me ntsis uas xa khoom hauv hnub ntau dua li lub hlis feem ntau raug nqi tsawg dua thaum koj ua rau qhov project qeeb.

Peb Tshuag thiab muab cov khoom qubSiemens PLCthiabSchneider PLCsystems, nrog rau kev sib pivHMIpanels, yog li koj tuaj yeem tau txais kev tswj hwm thiab kev sib cuam tshuam los ntawm ib tus neeg muag khoom es tsis koom tes nrog ntau tus neeg muag khoom. Yog tias koj twb paub tus qauv koj xav tau, xyuas cov Tshuag tam sim no thiab lub sijhawm ua ntej koj ua tiav koj qhov project ncua sij hawm.

Twb muaj ib qhov system nyob rau hauv qhov chaw? Ntawm no yog yuav ua li cas migrate los yog integrate.

Migrating los yog Integrating PLC thiab DCS nyob rau hauv Existing Plants

Hloov qhov Aging DCS nrog PLC thiab SCADA

Ntau cov nroj tsuag hloov cov qub txeeg qub teg DCS nrog lub niaj hnub PLC thiab SCADA architecture raws li lub hauv paus system mus txog qhov kawg ntawm lub neej, tshwj xeeb tshaj yog thaum cov txheej txheem tsis tau loj hlob txaus los ua pov thawj rau tag nrho cov scale DCS. Cov kauj ruam tseem ceeb: daim ntawv qhia txhua qhov uas twb muaj lawm I / O taw tes thiab tswj lub voj ua ntej decommissioning ib yam dab tsi, khiav cov txheej txheem tshiab ua ke nrog rau qhov qub rau lub sijhawm sim, thiab tsiv teb tsaws chaw los ntawm cheeb tsam es tsis yog tag nrho ib zaug.

Txuas lub PLC rau hauv DCS uas twb muaj lawm

Hauv lwm qhov xwm txheej, ib tsob nroj ntxiv PLC rau thaj chaw tshiab lossis cov txheej txheem thiab xav kom nws tham nrog DCS uas twb muaj lawm. Qhov no feem ntau yog ua los ntawm cov qauv kev cai xws li Profinet, Modbus, lossis OPC UA, siv lub rooj vag uas DCS tsis yog ib txwm txhawb nqa PLC txoj cai. Ntsuam xyuas cov ntaub ntawv kos duab thiab cov qauv tsis ua haujlwm ntawm lub rooj zaum teeb tsa ua ntej txuas rau cov txheej txheem nyob, vim tias lub qhov rooj tsis raug teeb tsa tuaj yeem tsim qhov muag tsis pom kev rau cov neeg ua haujlwm.

Pebkev sib txuas lus thiab interface modulestxhawb nqa cov txheej txheem kev lag luam loj uas siv hauv cov phiaj xwm kev sib koom ua ke no.

Thaum koj npaj txhij rau qhov chaw, ntawm no yog dab tsi los saib.

Sourcing PLC thiab DCS Cheeb Tsam: Cov neeg yuav khoom yuav tsum paub dab tsi

Qhov tseeb vs Refurbished lossis Counterfeit Parts

Cov khoom cuav thiab tsis raug kho dua tshiab yog qhov teeb meem tiag tiag hauv cov khoom lag luam thoob ntiaj teb, thiab cov khoom lag luam ua tsis tau zoo tuaj yeem raug nqi ntau dua hauv kev poob qis dua li nws txuag. Ua ntej koj yuav, txheeb xyuas tus neeg muag khoom tuaj yeem muab cov ntim khoom qub thiab tus lej traceability, nug ncaj qha seb cov khoom lag luam puas yog tshiab thiab tsis siv, thiab ceev faj ntawm cov nqi qis dua tus nqi lag luam ntawm cov khoom uas tsis yooj yim nrhiav.

Lub Sijhawm Leading, Spare Parts, thiab Kev Tswj Tus Nqi

Lub sijhawm ua haujlwm ntev ntawm kev txiav tawm lossis cov kev xav tau siab yog ib qho ntawm cov laj thawj feem ntau ua haujlwm poob qab lub sijhawm. Ua hauj lwm nrog ib tus neeg muag khoom uas tuav cov khoom muag thoob plaws ntau lub npe, tsis yog ib qho chaw tsim khoom, txo qhov kev pheej hmoo no thiab muab kev poob rau koj yog tias koj tus qauv xaiv thawj zaug qeeb.

NtawmShenzhen Chentuo Technology, peb muab cov khoom lag luam tshiab, thawj PLC, DCS nyob ib sab, HMI, thiab VFD cov khoom nyob thoob plaws Siemens, Schneider, ABB, Allen-Bradley, Mitsubishi, thiab Omron, feem ntau xa khoom tsis pub dhau 48 teev tom qab kev txiav txim pom zoo, nrog rau tom qab muag kev txhawb nqa thiab lub qhov rais rov qab los ntawm cov khoom tsim nyog. Yog tias koj tsis paub meej tias tus qauv twg haum rau koj daim ntawv thov, qhia peb koj cov txheej txheem thiab kwv yees I / O suav, thiab peb tuaj yeem pom zoo rau tus tswj hwm tsim nyog thiab lees paub cov khoom tam sim no.

FAQ

 

 

Puas yog DCS zoo dua PLC?

Tsis yog universally zoo dua. Lub DCS yog qhov zoo dua rau cov txheej txheem loj, txuas ntxiv, kev nyab xeeb tseem ceeb uas xav tau kev cog lus dav dav thiab ua kom rov ua dua. PLC yog qhov zoo dua rau kev txiav txim siab, tshuab qib automation qhov twg ceev, yooj yim, thiab qis dua tus nqi tseem ceeb dua.

PLC puas tuaj yeem hloov DCS?

Rau cov txheej txheem me me mus rau nruab nrab, PLC niaj hnub los yog PAC ua ke nrog SCADA tuaj yeem hloov cov tsoos DCS ntawm tus nqi qis, tshwj xeeb tshaj yog thaum cov txheej txheem tsis tas yuav muaj kev rov ua dua ntawm cov nroj tsuag loj loj. Rau cov txheej txheem loj heev, kev nyab xeeb tseem ceeb tas mus li, qhov tseeb DCS tseem muaj kev sib koom tes thiab kev ntseeg siab uas nyuaj rau rov ua dua nrog PLCs ib leeg.

Dab tsi yog qhov txawv ntawm PLC thiab DCS hauv cov ntsiab lus yooj yim?

PLC yog qhov ceev, compact maub los tsim rau discrete, tshuab theem ua haujlwm. A DCS yog ib lub network ntawm cov tswj tau tsim los tswj cov txheej txheem loj, txuas ntxiv mus thoob plaws tag nrho cov nroj tsuag nrog ua kom rov ua dua.

Puas yog SCADA PLC lossis DCS?

Tsis yog. SCADA yog txheej txheem tswj xyuas software uas sau cov ntaub ntawv los ntawm PLCs lossis DCS cov tswj hwm thiab nthuav tawm rau cov neeg ua haujlwm. Nws tsis ua lub hauv paus tswj nws tus kheej.

Puas yog DCS ruaj ntseg dua PLC?

Ib qho segmented DCS tuaj yeem muaj qhov ua txhaum cybersecurity mus rau ib ntu me ntawm cov nroj tsuag vim nws cov qauv faib. Lub hauv paus PLC tswj cov txheej txheem loj lossis qhov tseem ceeb tuaj yeem yog qhov loj dua ntawm qhov tsis ua haujlwm yog tias nws tsis raug cais los ntawm tus so ntawm lub network, tsis hais seb koj xaiv hom twg.

Kuv yuav xaiv li cas ntawm Siemens, Schneider, thiab ABB rau kuv tus maub los?

Pib nrog dab tsi koj pab neeg twb paub lawm thiab dab tsi koj twb muaj lawm network raws tu qauv txhawb, txij li thaum retraining thiab re-wiring ntxiv nqi tiag tiag. Los ntawm qhov ntawd, sib piv cov qauv kev qhia tshwj xeeb, cov khoom seem hauv zos muaj, thiab lub sijhawm ua haujlwm rau tus lej tshwj xeeb, tsis yog lub hom lag luam feem ntau. Yog tias koj qhia peb koj cov txheej txheem thiab cov txheej txheem yuav tsum tau ua, peb tuaj yeem taw qhia koj rau tus qauv sib xws thoob plaws hom.

Kev xav zaum kawg

PLC piv rau DCS kev txiav txim siab los ntawm cov txheej txheem hom, nplai, kev xav tau rov ua dua, thiab kev loj hlob yav tom ntej, tsis yog lub kaw lus twg zoo dua. Discrete, me me kev ua haujlwm yuav luag ib txwm zoo dua los ntawm PLC, thaum loj, txuas ntxiv, cov txheej txheem kev nyab xeeb tseem ceeb ua rau DCS. Thaum koj paub cov qauv tsim, hom thiab qauv koj xaiv txiav txim siab koj tus nqi hauv ntiaj teb tiag tiag, lub sijhawm ua haujlwm, thiab kev txhawb nqa ntev.

Yog tias koj twb paub hom thiab hom koj xav tau, xauj pebPLC moduleslos yogtag nrho cov khoom lag luamrau cov khoom tam sim no. Yog tias koj tseem hnyav PLC tawm tsam DCS rau koj cov txheej txheem tshwj xeeb,tiv tauj peb pab neegnrog koj cov txheej txheem hom thiab I / O suav, thiab peb yuav pab koj shortlist tus tswj txoj cai.