Lub PLC kav ntev npaum li cas? Lifespan los ntawm Component, Hom & Thaum Yuav Hloov

Feem ntau PLCs khiav kev ntseeg siab rau 10 mus rau 20 xyoo, thiab zoo -cov chav nyob huv huv, qhov kub thiab txias- tswj vaj huam sib luag feem ntau ncav cuag 30 xyoo lossis ntau dua. Tab sis tus maub los tsis tshua ua tsis tau tag nrho. Nws tsis ua haujlwm ntawm nws qhov tsis muaj zog tshaj plaws, thiab feem ntau yog lithium thaub qab roj teeb nrog lub neej kev pabcuam tsuas yog 3 txog 5 xyoos. Phau ntawv qhia no muab cov khoom xyaw rau koj los ntawm- cov ntaub ntawv muaj sia nyob, cov cim ceeb toom uas yuav tsum tau saib, thiab lub ntsiab lus meej rau kev txiav txim siab seb puas yuav kho, hloov, lossis hloov kho, suav nrog yuav ua li cas thaum koj tus qauv txiav tawm.

Qhov Nruab Nrab Lifespan ntawm PLC yog dab tsi?

Qhov feem ntau 10 txog 20 xyoo, thiab vim li cas qee qhov khiav 30+ xyoo

Daim duab 10 txog 20 xyoo yog ib qho tseem ceeb hauv paus, tab sis qhov twg ib chav tsev tshwj xeeb yog nyob ntawm peb qhov sib txawv: qhov chaw ua haujlwm, qhov zoo ntawm lub zog tuaj, thiab seb leej twg ua raws li lub sijhawm tu. Lub modular PLC tau nruab rau hauv huab cua- chav tswj cua txias, nrog lub roj teeb thaub qab hloov raws sijhawm, tuaj yeem yooj yim outlasting cov txheej txheem nws tswj. Nws tsis yog qhov txawv txav kom pom xyoo 1990-era Siemens S5 lossis Allen-Bradley PLC-5 tseem tab tom ua haujlwm niaj hnub no.

Muab tib tus maub los tso rau hauv qhov kub, plua plav, vibration-lub kaum sab xis ntawm cov nroj tsuag uas tsis muaj kev tiv thaiv kev tiv thaiv, thiab nws yuav nyuaj mus txog tsib xyoos. Lub hardware yog tib yam. Cov xwm txheej txiav txim qhov tshwm sim. Lub rooj txuas ntxiv mus ua txhaum qhov ntau ntawm ib puag ncig.

MTBF vs. lub neej kev pabcuam

Engineers feem ntau tsis meej pem ob tus lej, thiab nws raug nqi. Ib lub chaw tsim khoom yuav hais txog MTBF (lub sijhawm nruab nrab ntawm kev ua tsis tiav) ntawm 300,000 teev, uas ua haujlwm rau kwv yees li 34 xyoo. Qhov ntawd tsis tau txhais hais tias koj lub tsev yuav khiav mus txog 34 xyoo. MTBF yog qhov ntsuas qhov tsis ua haujlwm ntsuas thoob plaws hauv cov neeg coob thaum lub tiaj tus ntawm lub neej nkhaus. Nws tsis hais dab tsi txog kev hnav- tawm qhov chaw xws li electrolytic capacitors, relays, thiab lub roj teeb thaub qab, tag nrho cov uas muaj lub neej kev pab cuam uas luv dua. Lub siab MTBF tsis zam koj los ntawm kev hloov lub roj teeb txhua ob peb xyoos lossis los ntawm kev laus capacitor. Kho MTBF raws li daim duab kev ntseeg siab, tsis yog kev cog lus lifespan.

Hom lifespan los ntawm kev ua haujlwm:

PLC Lifespan los ntawm Cheeb Tsam (Tsis yog Txhua Qhov Chaw Hnub nyoog sib npaug)

PLC tsis yog ib qho khoom siv uas muaj hnub nyoog sib npaug. Nws yog ib pawg ntawm cov khoom uas muaj qhov sib txawv ntawm lub neej, thiab qhov luv tshaj plaws teev lub moos. Kev nkag siab txog qhov twg yuav ua tsis tau ua ntej qhia koj tias yuav saib xyuas dab tsi, yuav khoom dab tsi, thiab seb qhov ua tsis tiav yog kev kho sai lossis yog vim li cas los npaj kev hloov pauv.

CPU thiab processor modules (qhov ntev tshaj plaws)

CPU feem ntau yog qhov kawg uas koj yuav tsum tau txhawj txog. Lub neej ua haujlwm ib txwm khiav 15 mus rau 25 xyoo lossis ntau dua. Tus processor silicon nws tus kheej yuav luag tsis hnav tawm. Thaum lub CPU module ua tsis tiav, qhov ua rau yog ib txwm muaj kev laus electrolytic capacitors los yog solder kev qaug zog ntawm lub rooj tsavxwm, tsis yog lub nti. Hauv ntej, CPU tsis tshua muaj qhov txuas tsis muaj zog.

Fais fab mov modules

Cov khoom siv hluav taws xob feem ntau yog thawj cov khoom siv kho vajtse ua tsis tiav, feem ntau tom qab 8 txog 15 xyoo. Nws cov ntsiab lus tsis muaj zog yog cov electrolytic capacitors, thiab cua sov ua kom lawv cov laus. Cov tsos mob thaum ntxov muaj xws li drifting output voltage thiab random restarts. Cov lus ceeb toom tseem ceeb: cov teeb meem ntawm cov khoom siv hluav taws xob feem ntau raug kuaj pom tsis zoo raws li CPU ua txhaum, vim tias txoj kev tsheb ciav hlau tsis ruaj khov ua rau tag nrho cov khib nyiab coj tsis zoo.

I / O thiab kev sib txuas lus modules (feem ntau hloov)

I / O thiab kev sib txuas lus modules feem ntau kav 10 mus rau 15 xyoo, tab sis lawv tau sib pauv ntau zaus dua CPU rau ob qho laj thawj sib txawv. I/O modules fim lub teb ncaj qha, yog li lawv nqus surges, miswiring, thiab load, thiab relay outputs yog cov neeg kho tshuab hnav qhov chaw ntsuas los ntawm tus naj npawb ntawm kev ua haujlwm. Kev sib txuas lus modules, ntawm qhov tod tes, feem ntau so haujlwm thaum tseem ua haujlwm, vim tias cov txheej txheem lossis lub platform yuav dhau los ua ntej kho vajtse ua. Qhov thib ob taw tes ua ncaj nraim mus rau cov lus nug obsolescence tom qab hauv phau ntawv qhia no.

Lub roj teeb lithium thaub qab, qhov # 1 thaum ntxov tsis ua haujlwm

Qhov no yog ib feem yuav luag txhua kab lus lifespan tsis quav ntsej, thiab nws yog ib qho uas feem ntau yuav ua rau muaj qhov tsis tau npaj tseg. Lub roj teeb lithium feem ntau siv sijhawm li 3 txog 5 xyoos, txawm hais tias qee cov qauv ncab mus rau 5 txog 10 nyob ntawm seb lub tsev nyob ntev npaum li cas. Thaum nws tuag, PLCs laus tuaj yeem plam qhov kev pab cuam thiab khaws cia tsis muaj nyob hauv lub cim xeeb tsis zoo. Newer controllers nrog flash backup muaj kev nyab xeeb dua, tab sis ntau lub hauv paus nruab tsis yog.

Duab cov xwm txheej classic: Hnub Monday sawv ntxov, cov kab muaj zog, CPU tshaj tawm BAT FAULT, thiab tsuas yog tom qab ntawd pab pawg pom tias tsis muaj qhov program thaub qab tam sim no. Qhov ntawd yog ib qho ntawm feem ntau thiab feem ntau zam tsis tau ua rau poob qis. Cov khoom ua haujlwm yog qhov yooj yim: hloov lub roj teeb ntawm lub sijhawm teem tseg, ib txwm xa tawm thiab khaws cov haujlwm ua ntej koj hloov pauv, thiab nkag siab seb koj tus qauv puas txhawb nqa lub neej (powered-on) roj teeb hloov lossis yuav tsum muaj kev tswj hwm kaw. Yog tias koj xav tau lub roj teeb hloov lossis module thiab tsis paub meej ntawm qhov tseeb, koj tuaj yeem ua tausaib nws los ntawm tus qauv naj npawblos yog xa tuaj rau peb rau kev sib tw.

Electrolytic capacitor thiab relays (hnav qhov chaw)

Ob yam khoom yog guaranteed hnav. Electrolytic capacitors kav ntev li 10 xyoo ntawm lawv qhov ntsuas kub, thiab muaj ib txoj cai yooj yim uas yuav tsum nco ntsoov: txhua txhua 10℃nce hauv kev khiav hauj lwm kub txiav lawv lub neej li ntawm ib nrab. Relays raug ntsuas los ntawm tus lej ntawm kev hloov pauv, nrog cov neeg kho tshuab thiab hluav taws xob tiv tauj lub neej sib cais, yog li qhov siab - lub voj voog tso tawm yuav hnav sai dua li qhov tsis tshua muaj - hloov pauv. Khaws ob qhov tseeb hauv siab, vim lawv tsav ob qho tib si ib puag ncig thiab kev kho- piv- hloov lej hauv qab no.

Component lifespan reference (tus nqi ib txwm, zoo-cov ntaub ntawv khaws cia):

Cov no yog cov duab kos los ntawm cov chaw tsim khoom cov ntaub ntawv thiab kev paub dhau los. Ib txwm lees paub tiv thaiv cov ntaub ntawv rau koj tus qauv tshwj xeeb.

Cov lej no yog theoretical, txawm li cas los xij. Dab tsi tiag tiag txiav txim siab qhov twg cov khoom cog nyob rau hauv nws qhov ntau yog yuav ua li cas nws khiav.

Dab tsi cuam tshuam PLC kav ntev npaum li cas?

Kev ua haujlwm ib puag ncig

Cov lus tsis meej xws li "hnyav" tsis pab koj npaj, yog li ntawm no yog cov pib uas tseem ceeb. Feem ntau PLCs raug ntsuas rau 0 txog 55℃lossis 0 txog 60 degree, tab sis qhov ntsuas kub nyob nruab nrab siab tshaj li ntawm 40℃pom tau tias ua kom lub cev muaj zog thiab ua kom lub neej luv. Kev ntsuas av noo feem ntau yog 5 mus rau 95% tsis yog-condensing, thiab condensation yog tus yeeb ncuab tiag tiag, vim nws tsav corrosion thiab luv. Conductive plua plav (hlau, carbon) thiab corrosive gases tseem ceeb heev. Hauv kev kho dej (H2S) thiab zaub mov thiab dej haus ntxuav- thaj chaw hauv qab, cov huab cua corrosive cais raws li ISA-71.04 tuaj yeem ua rau cov neeg sib cuag thiab cov laug cam zoo ua ntej lawv hnub nyoog. Yog hais tias koj khiav controllers nyob rau hauv demanding txheej txheem, pebZogthiabKhoom noj khoom haus & dej hauscov nplooj ntawv daws teeb meem npog li cas cov tshuab no feem ntau tau teev tseg thiab tiv thaiv.

Lub luag haujlwm lub voj voog thiab thauj khoom

Tus maub los hloov qhov siab I / O suav 24/7 hnub nyoog sai dua li ib qho kev khiav lub teeb, ua haujlwm tsis tu ncua. Siab - zaus relay hloov pauv hnav cov neeg sib cuag, thiab hnyav dua nce qhov kub thiab txias, uas rov qab mus rau txoj cai capacitor saum toj no. Zaj lus qhia: ob qho tib si PLCs tuaj yeem muaj qhov sib txawv tiag tiag- lub ntiaj teb lub neej tsuas yog vim lawv ua haujlwm hnyav npaum li cas.

Lub zog zoo

Hluav taws xob tua PLC ntau dua li hnub nyoog. Surges, xob laim, thiab nquag cuam tshuam lub zog cuam tshuam rau lub hwj chim mov thiab I / O modules, thiab qhov kev puas tsuaj yog feem ntau cumulative es instantly. Kev kho yog ncaj nraim thiab pheej yig txheeb ze rau qhov tsis ua haujlwm: haum rau UPS thiab kev tiv thaiv kom zoo ntawm lub zog tswj. Ntau qhov "random restart" faults taug qab ntawm no es tsis yog rau CPU. Rau Siemens systems tshwj xeeb, kev xaiv lub hwj chim thiab kev siv hluav taws xob ua kom ntsuas qhov sib txawv rau kev ruaj ntseg.

Cov khoom zoo thiab cov khoom siv

Ob chav nyob ntawm tib tus lej tuaj yeem muaj qhov sib txawv ntawm kev ua neej, thiab qhov khoom yog vim li cas. Kev kho dua tshiab, rov tsim dua tshiab, lossis cov qauv cuav feem ntau muaj cov hnub nyoog electrolytic capacitors thiab tsis paub txog -cov roj teeb hauv paus, yog li lawv txoj kev ntseeg siab thiab lub neej tseem tshuav yog leej twg xav tau. Qhov no tsim nyog nkag siab ua ntej koj yuav khoom seem ntawm tus nqi ib leeg. Qhov tseeb, traceable qhov chaw (nrog cov keeb kwm tsim tawm tiag tiag thiab kev lees paub) tsis yog qhov kev nyiam yuav khoom xwb, lawv yog qhov tseem ceeb ntawm lub neej. Nws yog ib qho laj thawj uas peb muab cov khoom lag luam- cov qauv qub tshiab thiab rov qab rau lawv nrog kev lees paub, thiab koj tuaj yeem nyeem ntxiv txog pebkev tswj kom zoo thiab cov qauv tsim khoomntawm peb cov nplooj ntawv tuam txhab.

Cov kev tswj xyuas

Kev saib xyuas yog ib qho kev sib txawv uas tuaj yeem ncav cuag tus maub los ntawm hauv qab ntawm nws qhov ntau mus rau sab saum toj. Nws yog qhov tseem ceeb. Qhov tshwj xeeb, ua- qhov kev ua no yog nyob rau hauv daim ntawv teev npe hauv qab no dua li ntawm no, yog li cia peb txav mus rau lawv.

Kev ceeb toom qhia tias koj PLC ua tsis tiav

Yog tias koj tab tom sim ua kom paub seb tus maub los puas nyob ntawm nws txoj kev tawm, phim cov tsos mob mus rau qhov yuav ua rau thiab cov kauj ruam tom ntej. Cov no yog cov cim tsim nyog ua thaum ntxov.

Pom ob peb ua ke ntawm ib chav tsev laus? Tam sim no koj muaj peb txoj kev xaiv: kho, hloov, lossis hloov kho dua tshiab.

Yuav Ua Li Cas Ntxiv PLC Lifespan (Cov Ntawv Tshawb Xyuas Ua Haujlwm)

Cov xwm txheej saum toj no piav qhiavim li casPLC muaj hnub nyoog. Qhov no yog qhovyuav ua li cas thiab ntau npaum li cas. Ua haujlwm los ntawm nws raws li kev tiv thaiv niaj hnub:

• Environmental tswj.Khaws lub vaj huam sib luag kub hauv qab li 40℃thiab tswj cov plua plav thiab av noo. Ntxiv cov lim cua txias qhov xav tau.
• Teem sijhawm soj ntsuam.Tshawb xyuas kev sib txuas, cua txias, thiab lub tswb nrov ntawm lub sijhawm tsis tu ncua (lub hlis twg yog qhov ntau).
• Lub sijhawm hloov roj teeb.Hloov cov roj teeb thaub qab ntawm lub voj voog ruaj khov (txhua 3 xyoos yog qhov tsis muaj kev nyab xeeb, lossis ib tus neeg tsim khoom), thiab ib txwm rov qab rau qhov program ua ntej.
• firmware thiab program backups.Export cov kev pab cuam ntawm lub sij hawm thiab khaws cov ntawv luam tawm ntawm -site. Qhov no yog koj qhov kev pov hwm tiv thaiv roj teeb - ntsig txog kev nco ploj.
• Spare -cov khoom ntim khoom.Khaws qhov tseem ceeb thiab nyuaj - rau - qhov chaw modules ntawm tes, tshwj xeeb tshaj yog rau cov laus dua lossis tsis txuas ntxiv. Tsis paub meej tias tus qauv muab tseem nyob hauv ntau lawm lossis hauv Tshuag? Xa peb tus lej ntu thiab peb yuav kuaj xyuas.

Txawm tias ib lub qhov dej zoo -txoj kev tswj hwm nws thiaj li mus txog qhov uas koj yuav tsum txiav txim siab rau yav tom ntej. Ntawm no yog yuav ua li cas hu.

Kho vs. Hloov vs. Hloov kho: Yuav ua li cas txiav txim siab

Qhov kev txiav txim siab los mus rau peb lo lus nug: puas yog lub platform tseem txhawb nqa, puas yog qhov khoom siv hloov pauv tau, thiab cov khoom seem puas muaj tiag? Txhua lo lus teb taw qhia rau txoj kev sib txawv. (Rau daim duab dav dav, suav nrog tag nrho tus nqi ntawm cov tswv cuab, saib peb tus khub phau ntawv qhia ntawmTus nqi PLC.)

Thaum kho kom zoo

Kev kho yog qhov kev xaiv tsim nyog thaum qhov txhaum zaum hauv cov khoom siv hloov pauv tau (lub roj teeb, lub capacitor, ib daim npav I / O), lub platform tseem muaj kev txhawb nqa, cov khoom seem muaj tseeb, thiab koj muaj lub qhov rais saib xyuas. Hauv daim duab no, ib feem me me rov qab ua haujlwm tag nrho ntawm ib feem ntawm tus nqi ntawm lub kaw lus tshiab. Tsis muaj laj thawj los hloov CPU noj qab haus huv vim tias ib daim npav tso tawm ua tsis tiav.

Thaum twg los hloov nyiam-rau- nyiam

Zoo li -rau-zoo li kev hloov pauv yog qhov zoo tshaj plaws thaum kev ntseeg siab tag nrho poob qis tab sis koj tsis xav kov qhov kev pab cuam lossis cov xaim, thiab lub platform tseem nyob hauv kev tsim khoom lossis muaj qhov sib npaug tiag tiag. Swapping nyob rau hauv tib tus qauv zam reprogramming thiab minimizes downtime, uas yog feem ntau tsim nyog ntau tshaj li tej hardware txuag. Qhov no yog raws nraim qhov chaw ntseeg tau ntawmthawj hloov modulestseem ceeb tshaj plaws.

Thaum twg los hloov kho lossis hloov mus rau lub platform tshiab

Txhim kho thaum lub platform tau mus txog qhov kawg ntawm lub neej thiab cov khoom seem qhuav qhuav, thaum koj xav tau kev muaj peev xwm tshiab xws li kev sib txuas lus lossis kev nkag mus rau tej thaj chaw deb, lossis thaum lub sijhawm ntev -lub sij hawm spare- qhov kev pheej hmoo tsuas yog siab dhau. Ua siab ncaj txog tus nqi, txawm li cas los xij: kev tsiv teb tsaws tsis yog cov khoom siv kho vajtse. Nws suav nrog reprogramming, rewiring, thiab commissioning. Ntsuas qhov uas tiv thaiv kev pheej hmoo ntawm kev khiav tus maub los koj tuaj yeem tsis muaj qhov chaw rau.

Kho vs. hloov vs. upgrade ntawm ib nrais muag:

Tsis paub tseeb tias koj tus qauv tseem txhawb lossis hauv Tshuag? Xa peb tus lej rau astock thiab pricing check.

Yog tias qhov kev txiav txim siab taw qhia rau kev hloov lossis hloov kho tab sis koj tus qauv raug txiav tawm, koj tau mus txog qhov teeb meem nyuaj tshaj plaws ntawm txhua tus.

PLC Obsolescence: Yuav Ua Li Cas Thaum Koj Tus Qauv Txiav Txim Siab

Discontinued tsis txhais hais tias tuag. Nws txhais tau tias koj xav tau ib txoj kev npaj muab. Ntawm no yog yuav ua li cas kom paub meej cov xwm txheej thiab nrhiav txoj hauv kev rau pem hauv ntej.

Yuav ua li cas xyuas seb PLC yog qhov kawg - ntawm - lub neej

Pib nrog cov chaw tsim khoom cov ntawv ceeb toom hloov khoom lag luam (PCNs) thiab nplooj ntawv xwm txheej ntawm lub neej, uas teev cov haujlwm nquag, txwv - txhawb nqa, thiab cov xeev txiav tawm. Cov piv txwv classic uas tau hloov mus rau qhov kawg- ntawm- lub neej lossis kev txhawb nqa tsawg suav nrog Siemens S5 thiab classic S7-300 thiab S7-400 kab, Allen-Bradley PLC-5 thiab SLC 500, thiab laus dua Mitsubishi A-series thiab Omrons controller C-series Vim tias cov xwm txheej no hloov pauv lub sijhawm, paub meej txog theem tam sim no ntawm tus neeg muag khoom lub vev xaib lub neej ua haujlwm es tsis yog cia siab rau hnub koj nyeem qhov chaw. Thaum tsis ntseeg, kho "kev txhawb nqa tsis pub dhau" raws li lub teeb liab los npaj.

Functional - sib npaug hloov modules

Thaum qhov qub ploj lawm, daim ntawv - haum- muaj nuj nqi sib npaug tuaj yeem ua rau lub cev khiav haujlwm. Tus yuam sij yog txheeb xyuas kev sib raug zoo (firmware kho dua tshiab, kev sib txuas lus raws tu qauv, kev teeb tsa thiab lub davhlau ya nyob twg) ua ntej koj cog lus. Thiab ntawm no ib zaug ntxiv, kev tsim khoom zoo txiav txim siab kev ntseeg tau: tshiab tiag- qub- Tshuag yog qhov sib txawv heev los ntawm lub rooj tsav xwm tsis raug kho dua tshiab. Qhov no yog qhov uas nkag mus rau ntau lub npe thiab rau ob qho tib si tam sim no thiab cov khoom lag luam qub raug them tawm.

Sourcing legacy thiab obsolete modules thoob ntiaj teb

Cov lus nug siv tau yog qhov twg yuav tsum tau txiav cov khoom seem thiab yuav ua li cas nrog kev ntseeg siab. Nrhiav cov neeg muag khoom uas tuaj yeem txheeb xyuas qhov tseeb thiab keeb kwm, thiab ib txwm muab cov qauv thiab cov ntaub ntawv batch kom qhov sib tw yog qhov tseeb. Qhov no yog qhov sib txawv uas peb sau.

Xa peb koj tus qauv PLC lossis tus lej ib feem thiab peb yuav kuaj xyuas cov khoom lag luam thoob ntiaj teb thiab tus nqi rau kev hloov pauv tiag tiag thiab siv tsis tau.Raws li tus neeg muag khoom ua haujlwm nrog cov neeg xa khoom thoob plaws 30 lub teb chaws, peb muab cov khoom lag luam tshiab - cov qauv qub tshiab thoob plaws txhua lub npe loj, feem ntau xa tuaj hauv 48 teev, thiab cov khoom rov qab nrog ib - xyoo lav.Thov ib daim ntawv tsocai ntawm no.

PLC Lifespan los ntawm Hom

Lifespan yog qhov dav zoo sib xws thoob plaws cov hom lag luam loj, yog li qhov sib txawv tiag tiag yog nyob rau hauv kev hloov pauv tiam neeg thiab ntev npaum li cas txhua tus neeg muag khoom txhawb nqa lub platform. Cov ntsiab lus hauv qab no qhia txog cov xwm txheej zoo ib yam; lees paub qhov kev txhawb nqa tam sim no ntawm txhua tus neeg muag khoom nplooj ntawv lub neej.

Ib lub ntsiab lus sawv tawm ntawm lub rooj: Allen-Bradley's PLC-5 thiab SLC 500 tau ruaj khov kawg- ntawm-lub neej, thaum Mitsubishi's Q-series thiab Siemens 'S7-400 tseem nyiam qhov rais txhawb nqa ntev dua. Yog tias koj khiav ib txoj kab qub txeeg qub teg, kab kev txhawb nqa yog qhov yuav tsum tau tsav koj qhov kev npaj khoom seem, tsis yog hnub nyoog ntawm cov khoom siv.

Peb muab cov khoom thiab cov khoom nyob rau hauv tag nrho cov no. Koj tuaj yeem xauj los ntawm hom, piv txwv liSiemens PLC modules, Mitsubishi PLC modules, thiabSchneider PLC, lossis xa tus lej qauv rau txhua yam uas tsis tau teev tseg. Tsis hais lub hom phiaj, zaj lus qhia yog tib yam: npaj rau lub neej es tsis txhob tos qhov tsis ua tiav.

Xaus: Npaj rau Lifespan, Tsis Yog Kev Ua Phem

PLC lub neej tsis yog tiag tiag txog lub thawv. Nws yog hais txog qhov luv tshaj - nyob hauv nws, ib puag ncig nws khiav hauv, thiab seb leej twg yog tus tswj cov khoom ntawm lub hom phiaj. Kho nws li khoom vaj khoom tsev-cov lus nug txog kev tswj hwm: saib xyuas cov khoom hnav, khaws cov roj teeb thaub qab thiab cov khoom tseem ceeb ua ntej tsis ua haujlwm, thiab siv kev kho- hloov- txhim kho lub moj khaum los txiav txim siab ua ntej lub tswb yuam koj txhais tes. Obsolescence tsis yog qhov kawg ntawm kab ib yam nkaus, tsuav yog koj muaj ib txoj kev npaj rau cov khoom qub txeeg qub teg.

Paub koj tus qauv? Xa peb tus naj npawb rau cov khoom lag luam ceev thiab cov nqi kuaj xyuas ntawm cov khoom siv tiag lossis tsis siv lawm, thiab peb yuav pab koj ua kom txoj kab khiav.Thov ib daim ntawv tsocai ntawm no.

FAQ

 

 

PLC roj teeb kav ntev npaum li cas, thiab yuav ua li cas thaum nws tuag?

Lub roj teeb lithium feem ntau siv sijhawm li 3 txog 5 xyoos. Ntawm cov tswj cov laus, lub roj teeb tuag tuaj yeem tshem tawm qhov kev zov me nyuam thiab khaws cov tsis muaj nyob hauv lub cim xeeb tsis zoo, ua rau muaj kev tsis txaus siab. Nco ntsoov rov qab kho qhov program ua ntej hloov lub roj teeb. Yog tias koj xav tau lub roj teeb zoo lossis cov khoom seem, xa peb tus qauv rau kev sib tw.

Kuv yuav paub li cas yog tias kuv PLC ua tsis tiav?

Saib xyuas lub roj teeb lossis lub cim xeeb- tswb tswb, cuam tshuam I/O faults, kev sib txuas lus poob qis, overheating, thiab random restarts. Ib qho tsos mob yuav yog ib qho yooj yim kho, tab sis ob peb ua ke ntawm ib chav tsev laus feem ntau txhais tau hais tias nws yog lub sij hawm los npaj kho lossis hloov. Ua ke txhua tus tsos mob rau nws qhov yuav ua rau siv cov lus ceeb toom - cov lus qhia saum toj no.

Puas yog nws zoo dua los kho lossis hloov PLC qub?

Kho thaum qhov txhaum yog qhov hloov pauv tau thiab lub platform tseem txhawb nqa. Hloov zoo li-rau-zoo li thaum kev ntseeg tau poob qis tab sis koj xav kom tsis txhob reprogramming. Txhim kho thaum lub platform kawg - ntawm - lub neej thiab cov khoom seem tsawg tsawg. Cov kev txiav txim siab yog cov khoom seem, cov nqi poob qis, thiab seb lub platform puas tseem txhawb nqa.

Lub neej ntawm Siemens lossis Allen yog dab tsi -Bradley PLC?

Ob leeg feem ntau kav 10 mus rau 20 xyoo lossis ntau dua, nyob rau hauv txoj kab nrog kev lag luam nruab nrab. Cov lus nug loj dua yog cov neeg muag khoom txhawb nqa. Siemens tab tom txiav tawm cov classic S7-300 thiab S7-400 hauv kev pom zoo ntawm S7-1500, thiab Allen-Bradley's PLC-5 thiab SLC 500 yog qhov kawg ntawm lub neej. Rau cov khoom qub qub los ntawm ob hom, xa peb tus lej mus kuaj xyuas cov khoom lag luam.

Kuv puas tseem tuaj yeem yuav qhov chaw rau PLC txiav?

Yog lawm. Discontinued tsis txhais hais tias tsis muaj. Cov kev xaiv suav nrog cov tshiab tiag tiag- qub- Tshuag thiab daim ntawv pov thawj- haum- ua haujlwm sib npaug. Tus yuam sij yog lees paub qhov tseeb thiab kev sib raug zoo nrog koj tus qauv thiab batch. Xa peb tus lej thiab peb yuav tshawb xyuas cov khoom lag luam thoob ntiaj teb thiab tus nqi rau cov khoom siv tiag thiab tsis siv neeg hloov pauv.

Nws raug nqi npaum li cas los hloov PLC?

Nws nyob ntawm tus qauv, tiam, thiab ntau, thiab tsis muaj ib daim duab tsim nyog hais. Feem ntau tus nqi ntau tshaj - txoj kev ua tau zoo tsis yog kev hloov kho tag nrho tab sis qhov hloov pauv tiag tiag uas tsis txhob rov ua haujlwm dua thiab poob sijhawm. Yog xav paub ntxiv txog cov nqi lifecycle, saib pebDaim ntawv qhia tus nqi PLC, ces xa peb koj tus qauv rau ib nqe lus.

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