Teb 1: AC yog cov khoom siv hluav taws xob tsim los ua cov haujlwm digital hauv ib puag ncig kev lag luam.
Nws ua haujlwm ib lub cim xeeb uas tuaj yeem tsim tau programmed thiab siv los khaws cov lus qhia nyob rau hauv ntau yam kev ua haujlwm tau yooj yim nrog cov kev tswj hwm tau yooj yim nrog kev tswj hwm kev tswj hwm thiab tau yooj yim nthuav nws txoj haujlwm. "
Ua ntej, cov yam ntxwv ntawm PLC
1, kev ntseeg siab siab, muaj zog tiv thaiv kev cuam tshuam muaj peev xwm
Kev ntseeg siab yog qhov tseem ceeb ua haujlwm ntawm cov khoom siv hluav taws xob. PlC vim kev siv ntawm niaj hnub loj-teev ua ke cov thev naus laus zis sib xyaw ua ke, muaj cov kev cuam tshuam hauv kev cuam tshuam nrog kev cuam tshuam nrog kev ntseeg siab. PlC nrog kho vajtse tsis ua haujlwm tus kheej kev coj ua haujlwm, ua haujlwm tuaj yeem muab tso rau hauv lub sijhawm thaum lub tswb nrov. Nyob rau hauv daim ntawv thov software, tus neeg thov tseem tuaj yeem ua tiav rau hauv qhov chaw tiv thaiv tus kheej, kom lub kaw lus ntxiv rau kev tiv thaiv tus kheej thiab cov khoom siv kom tsis txhob muaj kev tiv thaiv tus kheej. Nyob rau hauv txoj kev no, tag nrho cov kab ke muaj kev ntseeg siab heev tsis yog qhov xav tsis thoob.
2, Txhawb kom tiav, ua haujlwm thiab hloov tau
PLC Kev tsim kho rau hnub tim, tau tsim ib qho loj, nruab nrab thiab me ntawm cov khoom ntawm ntau qhov ntau thiab tsawg. Yuav siv tau rau ntau nplai ntawm kev lag luam tswj lub sijhawm. Ntxiv nrog rau cov kev ua haujlwm logic ua haujlwm, feem ntau ntawm PlC Niaj hnub nimno PlC muaj cov ntaub ntawv zoo tag nrho cov peev txheej zoo meej, tuaj yeem siv rau ntau qhov chaw tswj digital. Nyob rau hauv xyoo tsis ntev los no, muaj ntau ntau ntawm PLC muaj nuj nqi tau tshwm sim, ua plC nkag mus rau ntau txoj kev tswj hwm xws li txoj haujlwm tswj, ntsuas kub, thiab cnc. Coupled nrog txoj kev txhim kho PLC kev sib txuas lus thiab kev txhim kho ntawm tib neeg kev sib txuas lus thev naus laus zis, kev siv PLC los ua ntau yam ntawm kev tswj cov tshuab tau ua yooj yim heev.
3, kawm tau yooj yim thiab siv tau yooj yim, txais tos los ntawm engineers thiab cov kws tshaj lij
Plc ua ib qho kev lag luam dav dav tswj lub computer, kev tswj khoom rau kev lag luam thiab tsuas yog cov lag luam. Nws yog ib qho yooj yim rau interface, cov lus programming yooj yim rau cov engineers thiab cov kws tshaj lij los lees txais. Ntaiv lus kos duab lus qhia cov lus thiab cov kab ke ntawm hluav taws xob nrog PLC tuaj yeem yooj yim paub txog kev ua haujlwm ntawm kev xa khoom. Tsis paub txog cov hluav taws xob hluav taws xob, tsis nkag siab cov hauv paus ntsiab lus ntawm lub koos pij tawj thiab cov rooj sib txoos rau cov neeg siv computer qhib qhov rooj kev lag luam qhib lub qhov rooj kev lag luam qhib lub qhov rooj.
4, tus qauv tsim ntawm cov kab ke, tsim cov haujlwm me me, kev txij nkawm yooj yim, hloov kho yooj yim
PlC nrog cov cav hluav taws xob tsis siv hluav taws xob logic, kom cov kev tswj hwm cov txheej txheem sab nraud, kom cov kev tsim kho ntawm lub voj voog sab nraud, yog li cov kev tswj hwm tau zoo heev, thaum kev saib xyuas tau yooj yim dua. Dab tsi ntxiv, nws ua rau nws muaj peev xwm hloov cov txheej txheem ntau lawm ntawm tib cov khoom siv los ntawm kev hloov pauv txoj haujlwm. Qhov no yog haum rau ntau hom tsiaj, me me pob ntau lawm.
5, me me me me, lub teeb hnyav, tsis tshua muaj zog siv hluav taws xob
Ultra-compact PLC, piv txwv li cov tshiab, cov tshiab tsim ntau ntawm cov hauv qab loj tsawg dua 100mm, qhov hnyav tsawg dua 150g, kev siv fais fab ntawm tsuas yog ob peb watts. Vim tias qhov loj me me yog yooj yim kom haum rau hauv cov tshuab, yog qhov tseeb ntawm cov khoom tswj hwm zoo tshaj plaws rau metcharonics.
Thib ob, daim ntawv thov ntawm PLC
At present, PLC has been widely used at home and abroad in iron and steel, petroleum, chemical, electric power, building materials, machinery manufacturing, automotive, textile, transportation, environmental protection and culture and entertainment industries, the use of which can be broadly summarized in the following categories:
1, Hloov Chaw Log Tsheb
Qhov no yog qhov yooj yim tshaj plaws, uas hloov cov kev tswj hwm ib txwm muaj, tuaj yeem siv rau ntau pawg tswj hwm thiab cov rooj sib dhos automidly. Xws li txhaj tshuaj molding tshuab, tshuab luam ntawv, stapling tshuab, sib xyaw tshuab, ntim cov kab sib tsoo, plating kab thiab lwm yam.
2, analog tswj
Nyob rau hauv cov txheej txheem kev lag luam ntau lawm, muaj ntau yam kev hloov pauv tsis tu ncua, xws li kub, ntws, ntws, qib thiab nrawm yog analog. Txhawm rau ua cov txheej txheem programmable los cuam tshuam nrog analog, yuav tsum paub qhov analog (analog) thiab digital) thiab kev hloov dua siab tshiab thiab d / ib qho hloov dua siab tshiab. Plc cov tuam txhab tsim kev txhawb nqa A / D thiab D / ib qho hloov pauv hloov dua siab tshiab, yog li ntawd cov txheej txheem programmable rau kev tswj lub analog.
3, tswj kev tsa suab
Plc tuaj yeem siv rau cov lus tsa suab lossis daws cov lus tsa suab tawm. Los ntawm kev tswj hwm mechanism teeb tsa, ntxov ncaj qha rau hloov I / O Module txuas nrog txoj haujlwm sensor thiab actuator, thiab tam sim no feem ntau siv cov lus tsa suab zoo tswj hwm module. Xws li ib-axis lossis ntau-axis txoj hauj lwm tswj cov modules uas tuaj yeem tsav cov eleples eleples lossis servo motors. Cov khoom lag luam ntawm lub ntiaj teb cov tuam txhab PLC loj loj yuav luag pom cov lus tsa suab, siv cov cuab yeej siv tau dav hauv ntau yam ntawm cov tshuab, tshuab cov cuab yeej siv cov tshuab hluav taws xob, cov tshuab robators, elevators thiab lwm lub sijhawm.
4, txheej txheem tswj
Cov txheej txheem tswj yog hais txog lub voj-voj tswj ntawm qhov ntsuas kub, siab, ntws thiab lwm yam kev ntsuas analog. Raws li ib qho kev lag luam tswj lub computer, PlC tuaj yeem pab pawg tswj hwm kom tiav lub kaw-voj tswj, PID tswj tau yog feem ntau siv nyob rau hauv lub kaw-voj tswj system ntau txoj cai. Loj thiab nruab nrab plc muaj pid muaj nuj nqi.
Teb 2: Plc {=}}}}}}}}}}}}}}}}}}}} }້ອງ ntawm cov kev ua tiav ntawm cov ntawv thov hauv kev lag luam ib puag ncig.
Nws ua haujlwm ib chav kawm ntawm cov txheej txheem ua haujlwm rau cov kev kawm nkag mus hauv, thiab tswj hwm cov txheej txheem siv ntau yam los ntawm cov txheej txheem siv tshuab lossis cov txheej txheem ua ntu zus los ntawm cov txheej txheem digital lossis cov khoom siv analog / tawm. Nws yog qhov tseem ceeb ntawm kev tswj hwm kev lag luam. Ntawm tam sim no, PLC tau siv dav hauv tsev thiab txawv teb chaws, kev tiv thaiv dej, kev lag luam, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, kev lom zem, siv tau kev lom zem, kev lom zem, kev lom zem uas tuaj yeem yog sau cia kom dav raws li hauv qab no.
1, hloov mus logic tswj uas yog qhov tseem ceeb tshaj plaws ntawm PLC, uas hloov cov kev tswj hwm ntawm ib qho khoom siv, tuaj yeem siv rau ntau pawg tswj hwm thiab cov rooj sib dhos automidly. Xws li txhaj tshuaj molding
2, analog tswj nyob rau hauv cov txheej txheem kev lag luam, muaj ntau yam kev hloov pauv tsis tu ncua, xws li kub, ntws, qib thiab nrawm yog analog. Txhawm rau kom muaj kev pab txhawb cov controllers los cuam tshuam nrog analog, analog (analog) thiab digital) thiab digital) ntawm ib / d hloov dua siab tshiab thiab D / Ib Qho. Plc manufacturers yog tsim kev txhawb nqa A / D thiab D / S / S / S / S / S / S / S / S / S / S / S / S / S / S / S / S / S / S / S / SCESSORRABLE controllers rau kev tswj analog.
3, Kev tswj hwm cov lus ntuas Plc tuaj yeem siv rau cov lus tsa suab nrov lossis tawm suab. Los ntawm kev tswj hwm mechanism teeb tsa, ntxov ncaj qha rau hloov I / O Module txuas nrog txoj haujlwm sensor thiab actuator, thiab tam sim no feem ntau siv cov lus tsa suab zoo tswj hwm module. Xws li ib-axis lossis ntau-axis txoj hauj lwm tswj cov modules uas tuaj yeem tsav cov eleples eleples lossis servo motors. Cov khoom lag luam ntawm lub ntiaj teb cov tuam txhab PLC loj loj yuav luag pom cov lus tsa suab, siv cov cuab yeej siv tau dav hauv ntau yam ntawm cov tshuab, tshuab cov cuab yeej siv cov tshuab hluav taws xob, cov tshuab robators, elevators thiab lwm lub sijhawm.
4, Cov txheej txheem tswj cov txheej txheem tswj cov khoom siv yog hais txog qhov kub, siab, ntws thiab lwm yam kev tswj hwm lub voj kaw. Raws li ib qho kev lag luam tswj lub computer, PlC tuaj yeem pab pawg tswj hwm kom tiav lub kaw kaw-voj kaw-voj tswj system siv ntau txoj cai. Loj thiab nruab nrab plc muaj PID MODULE, ntau cov PLC me me muaj cov haujlwm no module.pid kev ua haujlwm yog feem ntau khiav ib qho tshwj xeeb pid subroutine. Cov txheej txheem tswj hauv metallurgy, kev lag luam tshuaj, kev kho cua sov, kev tswj cua sov, boiler tswj thiab lwm lub sijhawm muaj ntau cov kev siv.
5, Cov ntaub ntawv ua niaj hnub no ua haujlwm plc nrog cov haujlwm ua lej (suav nrog kev hloov pauv, cov ntaub ntawv hloov dua tshiab, tuaj yeem ua tiav cov ntaub ntawv tau txais, kev tshuaj xyuas thiab ua. Cov ntaub ntawv no tuaj yeem piv nrog cov nqi siv khaws cia qee yam kev tswj hwm uas siv lwm cov kev sib txuas lus, lossis lawv tuaj yeem luam tawm thiab tabulated. Cov txheej txheem kev ua lag luam yog feem ntau siv rau cov tshuab tswj loj, xws li UNMANUD FLEXIBLE CRACTABLE CRACTABLE RAUG TSHUAB; Kuj tseem siv tau rau cov txheej txheem tswj cov tshuab, xws li ntawv, metallurgy, kev lag luam khoom noj hauv qee cov tshuab tswj kev lag luam loj.
6, Kev sib txuas lus thiab kev sib txuas lus PLC suav nrog PLC kev sib txuas lus thiab PLC kev sib txuas lus nrog lwm cov khoom siv ntse. Nrog rau kev txhim kho ntawm lub computer tswj, lub Hoobkas automation network txoj kev loj heev, cov plc cov tuam ntxhab Txuas qhov tseem ceeb ntawm PLC, tau qhia lawv tus kheej lub network. Tshiab tsim PLCs muaj kev sib txuas lus sib txuas lus, kev sib txuas lus yooj yim heev.
Teb 3: PLC yog tus tswj hwm, lub luag haujlwm tseem ceeb yog kom paub qhov kev tswj hwm ntawm cov kauj ruam tswj raws li cov kauj ruam tswj koj xav tau lossis tswj tau cov kev xav tau!
Qhov tseeb, cov lus nug no rau PLC tsis tau siv lossis tsis paub ntau txog cov neeg, nws yog qhov nyuaj los piav kom meej! Txawm li cas los xij, xws li Of theator tswj, qee tsev neeg ntawm cov ciav hlau ntse ntawm kev sib tshuam, lossis cov khw muag paj nruag, cov khoom siv suab paj nruag, tsis siv PLC nrog lwm cov kev tswj hwm tuaj yeem ua tiav. --- Qhov teeb meem nrog cov lus qhia no yog cov lus qhia txog kev ua lej, yog li lawv muaj zog, yog li lawv tau siv dav hauv txhua qhov chaw ntawm lub neej!
Plc yog hloov zuj zus los ntawm thawj qhov kev tswj hwm hluav taws xob, yog li ntawd nws txoj kev ua yeeb yam tau yooj yim, tam sim no nws tuaj yeem siv dav hauv ib qho tseem ceeb!
To put it in another way, you buy a calculator can realize the function, PLC can realize, PLC is also like a very powerful computer with CPU, and then with the upper computer monitoring software, you can through the screen way to monitor and control, you want to control the object, these controlled objects are usually electric motors, fans, pumps, lights, switches, valves, etc., PLC can also be accessed to the button switch, temperature, pressure, and other signals. PLC kuj tuaj yeem nkag mus rau lub khawm hloov, kub, siab thiab lwm lub cim.
Tsuas hais li ntawd, lub luag haujlwm tseem ceeb ntawm PLC yog kom paub cov cim lossis cov cim thiab cov khoom siv hluav taws xob kom ua tiav qee yam tsis siv neeg lossis kaw cia li cia li! Yog tias muaj qhov kov kov thiab lwm cov khoom siv zaub, koj tuaj yeem paub ntau ntxiv saib lub xeev cov khoom siv thiab cov tsis muaj ntsuas kub thiab av noo!
Teb 4: PLC tsuas yog kev siv ntawm ib qho kev pabcuam ntawm cov khoos phis tawj.
Lub luag haujlwm tseem ceeb yog hloov pauv cov pob zeb peripheral los tsim cov cuab yeej tshiab. Los ntawm kev sib xyaw ua ke kom ua tiav kev hloov pauv, kom ua tiav cov khoom lag luam sai thiab tsim ntawm cov khoom lag luam, txo lub sijhawm ntawm kev loj hlob thiab ntau hom kev pheej hmoo.
Nyob rau hauv lub xyoo pua xeem, nws tau npaj siab xyoo 1968, thiab thawj tus tshwm sim hauv 69. Cov lus uas muaj peev xwm hloov tau cov haujlwm zoo, thiab tib lub sijhawm ua haujlwm hauv kev ua haujlwm nrog kev saib xyuas. Nws tsis yog cia siab rau cov engineers coj lub burner mus rau qhov chaw tsim khoom mus rau hauv cov khoom lag luam nrog, yog li qhov kev xav tau ntawm cov kws kho mob muaj peev xwm tuaj yeem ua haujlwm. Lub sijhawm ntawd, Hlawv qhov kev zov me nyuam yuav tsum UV lub teeb eprom ob peb teev.
Niaj hnub nim no PLC tau ntev tau hloov kho mus rau ib qho kev kawm muaj zog heev, tab sis kev khiav haujlwm ntawm tus kws kho tsheb tseem yog hom qauv. Yog li lub luag haujlwm tseem ceeb ntawm PLC yog kom sai sai ua combine, yooj yim khiav lag luam, yooj yim tswj.
Teb 5: PLC yog lub luag haujlwm, lub luag haujlwm tseem ceeb yog nyob ntawm cov kauj ruam tswj koj xav tau lossis tswj hwm kev tswj hwm ntawm cov khoom tswj!
Qhov tseeb, cov lus nug no rau PLC tsis tau siv lossis tsis nkag siab ntau ntawm cov neeg, nws yog qhov nyuaj los piav kom meej! Txawm li cas los xij, xws li Of theator tswj, qee tsev neeg ntawm cov ciav hlau ntse ntawm kev sib tshuam, lossis cov khw muag paj nruag, cov khoom siv suab paj nruag, tsis siv PLC nrog lwm cov kev tswj hwm tuaj yeem ua tiav. --- Qhov teeb meem nrog cov lus qhia no yog cov lus qhia txog kev ua lej, yog li lawv muaj zog, yog li lawv tau siv dav hauv txhua qhov chaw ntawm lub neej!
Plc yog hloov zuj zus los ntawm thawj qhov kev tswj hwm hluav taws xob, yog li ntawd nws txoj kev ua yeeb yam tau yooj yim, tam sim no nws tuaj yeem siv dav hauv ib qho tseem ceeb!
To put it in another way, you buy a calculator can realize the function, PLC can realize, PLC is also like a very powerful computer with CPU, and then with the upper computer monitoring software, you can through the screen way to monitor and control, you want to control the object, these controlled objects are usually electric motors, fans, pumps, lights, switches, valves, etc., PLC can also be accessed to the button switch, temperature, pressure, and other signals. PLC kuj tuaj yeem nkag mus rau lub khawm hloov, kub, siab thiab lwm lub cim.
Tsuas hais li ntawd, lub luag haujlwm tseem ceeb ntawm PLC yog kom paub cov cim lossis cov cim thiab cov khoom siv hluav taws xob kom ua tiav qee yam tsis siv neeg lossis kaw cia li cia li! Yog tias muaj qhov kov kov thiab lwm cov khoom siv zaub, koj tuaj yeem paub ntau ntxiv saib lub xeev cov khoom siv thiab cov tsis muaj ntsuas kub thiab av noo!
Teb 6: PlC Kev Paub
Programmable Logic maub los (programric logic controuer, plc) yog nyob rau hauv kev txhim kho cov roj ntsha txuas ntxiv ntawm cov khoom siv kev lag luam tshiab.
Plc vim tias ntawm nws tus kheej thiab cov yam ntxwv, nyob rau hauv tsev thiab txawv txav ntawm kev tswj hwm automation tswj ntawm kev lag luam kev lag luam kev lag luam cov khoom lag luam ntau lawm.
Txhais ntawm PLC
Cov tshuaj thauj khoom ib txwm muaj txuas nrog cov hluav taws xob hluav taws xob los tsim cov kauj vab tsim qauv, muaj ntau txoj kev hloov kho, nyuaj nrhiav kev ua txhaum thiab lwm yam kev ua txhaum. Xyoo 1968, Tebchaws Asmeskas 'loj tshaj plaws tsheb dav dav kev tswj hwm kev tswj hwm, kev hloov kho tshiab tas li, txo qis kev xav tau rov sau dua lub tsheb. Kev hloov kho tshiab tas li, kom deb li deb tau los txo cov recesign thiab hloov ntawm Relay Tswj Kev Tswjhwm Kho Vajtse thiab cov xaim hluav taws xob, yog li txo tus nqi. Yog li, General Motors tsa lub hom tswj hwm tsim nyog rau kev tswj hwm lub khoos phis tawm los ntawm kev tswj hwm kev lag luam kev tswj hwm lub zog, yooj yim ntawm kev ua haujlwm thiab tus nqi qis. Hauv tib lub xyoo, lub tuam txhab cov pej xeem kev sib tw. Xyoo 1969, Tebchaws Asmeskas cov khoom lag luam Corporation (idec) raws li cov cai ntawm kev ua tiav, thiab nyob rau hauv cov neeg Motors automed sib dhos rau ib txoj kev sib tw ua tiav. Thaum ntxov programmable maub los yog los hloov cov kev qhia txog kev tswj hwm kev tswj hwm, ua haujlwm rau cov kev tswj hwm cov kev tswj hwm (programing)
Mus rau hauv xyoo 1970, nrog rau kev txhim kho cov tshuab siv tshuab microelectronics, tab sis kuj tau ua haujlwm rau cov ntaub ntawv thiab ua haujlwm rau lub khoos kas. Xyoo 1980, Tebchaws Asmeskas cov tshuab hluav taws xob koom tes ua lag luam muaj npe ntawm cov maub los programmable (picmrammablecontroller, pic). PeprammableCotroller, PC), tab sis vim nws yooj yim rau tus kheej lub computer (tus kheej, PC) tseem muaj kev txhawb nqa los siv pic ua cov txheej txheem controller picelmable.
Xyoo 1987, Txoj Haujlwm Hluav Taws Xob Hluav Taws Xob (LECC GUECTED tsim cov ntsiab lus hauv cov lus qhia tuaj yeem yog cov tswv yim digital lossis cov zis tawm, tswj hwm ntau yam ntawm cov txheej txheem kev lag luam, yooj yim nthuav tawm txoj haujlwm ntawm kev tsim qauv. "
Cov yam ntxwv ntawm PLC
Plc ua ib hom tshiab ntawm kev lag luam tswj ntaus ntawv, vim li cas rau cov ntawv thov thoob plaws thiab kev txhim kho ntawm nws tus kheej.
1, kev ntseeg siab siab, tiv thaiv kev cuam tshuam tiv thaiv kev cuam tshuam, nws yog ib qho tseem ceeb tshaj plaws ntawm PLC.
PlC vim kev siv ntawm niaj hnub loj-teev ua ke cov txheej txheem sib xyaw ua ke, yog li nws muaj kev ntseeg siab ntawm kev ntseeg tau. Ib qho ntxiv, plc nrog kho vajtse tsis ua haujlwm tus kheej kev coj ua haujlwm, ua haujlwm tuaj yeem xa mus rau lub sijhawm thaum lub tswb nrov. Nyob rau hauv daim ntawv thov software, kuj tseem tuaj yeem pom nyob rau hauv cov cuab yeej siv ua haujlwm tsis txaus ntseeg, kom lub kaw lus ntxiv rau cov pic ntaus ntawv sab nraum lub Circuit Court thiab cov cuab yeej kuaj mob tus kheej.
2, Ua tiav cov khoom siv kho kom tiav, kev ua haujlwm, muaj feem xyuam
Plc kev tsim kho rau hnub tim, tau tsim cov khoom siv loj, thiab cov khoom siv sib txawv, muaj cov khoom siv sib txawv, muaj cov khoom sib txawv, muaj ntau yam yooj yim los txuas cov hluav taws xob sab nraud nrog cov chaw dav dav. Nrog ntau thauj khoom muaj peev xwm, tuaj yeem tiv thaiv ncaj qha solenoid valve thiab AC hu rau ntau teev ntawm kev tswj hwm kev lag luam.
Vim muaj kev txhim kho thev naus laus zis, tus nqi ntawm PLC tau poob heev, ua ntau hom PLC microprocessals siv los ntawm kev ua haujlwm ntawm kev txhim kho dav dav. Txhawm rau txhawm rau txhim kho kev ua kom ceev ntawm PLC, cov tuam ntxhab kuj tau tsim cov kev ua tshwj xeeb cov khoom siv tshwj xeeb, ua rau PLC cov khoom siv thiab software ua haujlwm tau hloov pauv.
Daim ntawv thov ntawm PLC
Ntawm tam sim no, PLC tau siv dav hauv tsev thiab txawv teb chaws hauv cov hlau thiab cov khoom lag luam, nws daim ntawv thov tuaj yeem ua tiav cov lus sib txuas lus hauv qab no.
1, Hloov Chaw Log Tsheb
Hloov cov cav tswj hluav taws xob yog qhov yooj yim tshaj plaws, uas hloov cov kev xa khoom hauv cov kev tswj hwm hluav taws xob, kev txheeb xyuas cov kev tswj hwm logic, tswj kev tswj thawj zaug. Nws tuaj yeem siv rau ib qho cuab yeej tswj, kuj tseem siv tau rau cov cuab yeej siv tshuab ntau, xws li kev txhaj tshuaj tshuab, sib tsoo machine, xaub kab, plating kab thiab lwm yam.
2, analog tswj
Nyob rau hauv cov txheej txheem kev lag luam ntau lawm, muaj ntau yam kev hloov pauv tsis tu ncua, xws li kub, ntws, qib, siab thiab nrawm. Txhawm rau ua cov txheej txheem programmable los cuam tshuam nrog analog, yuav tsum paub qhov analog (analog) thiab digital) thiab kev hloov dua siab tshiab thiab d / ib qho hloov dua siab tshiab. Plc cov tuam ntxhab yog tsim kev txhawb nqa A / D thiab D / ib qho hloov pauv hloov dua tshiab, kom cov programmable maub los rau kev tswj hwm analog.
3, tswj kev tsa suab
Plc tuaj yeem siv rau cov lus tsa suab nrov lossis tawm suab lus tswj hwm. Dav siv nyob rau hauv ntau yam ntawm cov tshuab, tshuab cov cuab yeej, Robots, elevators thiab lwm lub sijhawm.
4, txheej txheem tswj
Txheej Txheem Tswj Xyuas feem ntau yog hais txog lub kaw-voj tswj ntawm cov tswj Analog tsis.
Plc los ntawm analog 1 / {{module kom ua tiav qhov ntsuas kub thiab digital A / D, siab thiab ntws tsis txuas ntxiv hloov analog pid tswj tau. Thaum sib txawv ntawm cov txheej txheem tswj yeej, tus pid tswj algorithm yuav laij cov zis kom yog, kom cov qauv tswj tau cov kev tswj hwm rov qab mus rau tus nqi tsim.
5, cov ntaub ntawv ua
Niaj hnub nimno PLC muaj cov haujlwm lej, cov ntaub ntawv hloov chaw, kev hloov cov lus, tuaj yeem ua tiav cov ntaub ntawv tau txais, kev tshuaj xyuas thiab ua. Cov ntaub ntawv no tuaj yeem khaws cia rau hauv lub cim xeeb nrog cov ntaub ntawv sib piv tau, kom tiav qee cov kev tswj hwm uas siv lwm yam kev sib txuas lus, lossis sau lawv cov kev sib txuas lus. Cov txheej txheem kev ua lag luam yog feem ntau siv rau cov tshuab tswj loj, xws li UNMANUD FLEXIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASHIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASHIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBLE CRASTIBE Kuj tseem siv tau rau cov txheej txheem tswj cov tshuab, xws li ntawv, metallurgy, kev lag luam khoom noj hauv qee cov tshuab tswj kev lag luam loj.
6, kev sib txuas lus thiab kev sib tham
PlC Kev Sib Txuas Lus Feem ntau suav nrog PLC thiab Computer Sib Tham, kev sib txuas lus thiab PLC kev sib tham nrog lwm cov cuab yeej paub kev sib txuas lus. Plc thiab lwm cov cuab yeej ntse tuaj yeem tsim tau ntawm "kev tswj hwm tswj hwm" ntawm kev tswj hwm kev tswj hwm.
▲ PLC yog qhov tseem ceeb lub microprocessor raws li cov tub ntxhais kawm ntawv hloov kho kom haum nrog cov kev tswj hwm ncaj qha rau cov kev tswj hwm ntawm cov lus programming.
Los ntawm cov kev kho vajtse kho vajtse, PLC feem ntau yog tsim cov chav ua haujlwm hauv nruab nrab (CPU), cov lus qhia / khoom siv hluav taws xob, cov txheej txheem thiab lwm qhov chaw.
Qhov chaw ua hauv kev ua haujlwm yog qhov tseem ceeb ntawm PLC, yog lub chaw tswj ntawm lub system, plays lub luag haujlwm ntawm tus thawj coj-hauv-tus thawj. Hauv PlC, CPU raws cov txheej txheem system kom muab txoj haujlwm, Command PlC los ua haujlwm nyob rau hauv ib tug txheej txheem, taw qhia hauv cov haujlwm hauv qab no.
1) Tau txais, khaws cov neeg siv kev pabcuam thiab cov ntaub ntawv tawm tswv yim los ntawm tus programmer.
2) Kev kuaj mob fais fab khoom, PLC sab hauv cov kab kev ua txhaum thiab lub cajmeem syntax yuam kev.
3) Tau txais cov xwm txheej lossis cov ntaub ntawv los ntawm daim teb los ntawm cov tswv yim interface thiab khaws cia rau hauv cov duab sau npe lossis cov ntaub ntawv sau npe.
4) Nyeem cov neeg siv kev pabcuam los ntawm txoj kab kev nco los ntawm kab, tom qab kev txhais ntawm kev tua.
5) Raws li cov txiaj ntsig ntawm kev ua haujlwm ntawm kev siv cov xwm txheej ntawm cov chij uas cuam tshuam thiab cov ntsiab lus ntawm cov zis lub cim xeeb, los ntawm cov khoom tsim tawm kom ua tiav cov zis tswj. Qee cov PLC kuj muaj cov ntawv luam ntawv lossis cov ntaub ntawv sib txuas lus.
Tam sim no, me me plc rau ib-CPU system, thiab nruab nrab plcs feem ntau yog dual-CPU system dua li 8 CPUs. rau lub kaw lus dual-CPU, feem ntau yog lo lus processor, {5}} ntsis lossis {6}} me ntsis processor; Qhov tod rau cov qhabnias me ntsis, kev siv cov tuam txhab tsim qauv thiab tsim cov chips tshwj xeeb. Lo lus processor yog lub ntsiab processor yog lub ntsiab processor, siv los ua lub sijhawm ua haujlwm sab hauv, saib xyuas cov lus qhia sab hauv, kev qhia txog cov lus qhia thiab cov txheej txheem caij tsheb. Bit processor rau cov txheej txheem qhev, feem ntau yog siv rau kev ua haujlwm cov lus qhia ua haujlwm thiab kev paub ntawm PLC cov lus programming.
Teb 7: Txhawm rau hais tias lub luag haujlwm ntawm PLC tau hais nws hauv kev tswj hwm ntawm kev tswj hwm.
Raws li peb txhua tus paub, PLC tau yug thaum pib ntawm txoj kab ntau lawm tau siv rau, tom qab yuav luag muaj kev tswj hwm, plc hauv teb kev lag luam tswj hwm lub luag haujlwm tseem ceeb.
Peb pib los ntawm cov kev tsim hluav taws xob tswj tau yooj yim, txhua qhov chaw tsis muaj kev hloov kho ntawm Relay tswj txoj kab yog kev siv rau PLC; Tom qab ntawd hauv niaj hnub niaj hnub tswj hwm kev tswj hwm Plc kuj yog ib qho ntawm cov cim tseem ceeb, suav thiab tsim tawm lub luag haujlwm ntawm ntau yam khoom siv; Nrog cov thev naus laus zis niaj hnub yog ntau dua thiab muaj ntau yam kev sib txuas lus plc, thiab cov ntxaij vab tshaus uas tau pom ntawm cov chaw taws teeb ntawm kev tswj hwm tau; Tsis tas li ntawd, nyob rau hauv cov niaj hnub ntse tsim kev ua haujlwm ntawm cov kab ntau lawm, cov neeg siv hluav taws xob tau ua ntau cov ntaub ntawv yuav tsum tau ua los ntawm PLC thiab muab rau cov neeg hlau muaj kev lag luam. Plc ua thiab muab rau cov neeg hlau muaj kev lag luam.
Nws tuaj yeem pom, plc Txawm tias nyob rau hauv cov kev tswj hwm logic yooj yim lossis hauv cov khoom lag luam niaj hnub ntse ntse ua ke plC lub luag haujlwm yog tsis muaj!
Plc tsis yog tsuas yog nyob hauv cov lag luam muaj nyob hauv lwm cov chaw kuj muaj ntau yam, xws li nyob rau hauv ntau yam ntawm cov tsev siab tsheb siab hauv of the elevator tswj lub voj voog; Cov tsheb ncaj qha siv hauv kev tswj hwm cov teeb liab; Lub neej nyob rau hauv cov ntxaij seev cev tswj cov khoom siv, kev tshaj tawm cov teeb tswj thiab yog li tuaj yeem pom hauv daim ntawv thov PLC!
Teb 8: Lub luag haujlwm ntawm PLC yog dab tsi?
Zoo siab tau teb cov lus nug no, PLC tag nrho tag nrho cov phiaj xwm kev lag luam, raws li cov phiaj xwm kev lag luam, raws li cov phiaj xwm solenoff, koj tuaj yeem tswj cov teeb tsa solenoff, koj tuaj yeem tswj hwm cov leeg, cov leeg digital, digital cov leeg tawm thiab lwm yam.
Cov khoom siv hluav taws xob dhau los txuas ntxiv rau cov xov xwm software, thiab siv cov khoom siv sib txuas ntau npaum li cas, nrog PLC yooj yim thiab yooj yim.
With the continuous development of science and technology, PLC inputs can be connected to analog signals, high-speed counting inputs, etc., and other equipment through 232, 422, network communication with each other, the output can also be analog signals, high-speed pulse output, PWM outputs, you can control servo amplifiers, multi-axis linkage and so on.
PLC tam sim no pheej yig, muaj ntau cov khoom siv tsis tuaj yeem sib cais ntawm cov khoom siv hluav taws xob plc, los qhia qhov kev tso dag yog tias cov cuab yeej tswj hluav taws xob ntawm PLC, uas yuav tshwm sim tsis muaj qib.
Plc yog raws li kev txhim kho ntawm Relay ntu kev tswj hwm rau lub microprocessor raws li qhov tseem ceeb tswj ntaus ntawv.
PlC rau microprocessor-raws li, muab cov thev naus laus zis thev naus laus zis, nrog kev txhawb nqa yooj yim, muaj kev ntseeg siab ntawm lub hom phiaj tshiab ntawm General-hom phiaj muaj hom kev tswj hwm.
PLC tau siv dav hauv kev tsim tshuab, tsheb thauj mus los, kev lag luam hluav taws xob, kev lag luam tsim khoom thiab cov ntawv thov tiag tiag ntawm cov hom hauv qab no:
01 plc rau hloov kev tswj hwm
PlC hloov kev tswj los hloov cov kev xa tawm hauv Circuit Court, kev tswj hwm ntawm cov ntsiab lus inbound thiab ozen cov ntsiab lus, ntau dua li ob peb puas, ntau txhiab, lossis txawm txog ntau txhiab lub ntsiab lus. Los ntawm kev sib koom tes, tus naj npawb ntawm cov ntsiab lus yog yuav luag tsis muaj.
Plc tuaj yeem tswj tau los ntawm cov laj thawj ntawm kev sib xyaw ua ke ntawm cov teeb meem, sijhawm sai, tsis tas yuav suav, ua haujlwm lossis lwm yam.
PlC cov qauv kho vajtse muaj cov sib txawv, thiab tuaj yeem siv rau cov cuab yeej tswj ib pawg, ntau-tshuab pab pawg tswj hwm kab. Nws txoj kev pabcuam software kuj tseem yog programmable, yog tias tsim nyog, tuaj yeem sau rau hauv ntau pawg lossis pawg ntawm cov kev pab cuam, raws li xav tau hu.
02 plc rau analog tswj
PLC tuaj yeem siv los tswj cov tshuaj analog, xws li kub siab, uas tau hloov pauv cov qauv sib txuas lus (A / D, D / S / SATALOG thiab DIGITAL ntau.
Nrog rau kev tswj analog, hloov kev tswj tseem tau. Lwm cov tswj tsis tau muaj, thiab tswj xyuas qhov tseeb tsis yooj yim li PLC.
- A / D Unit (analog-rau-digital conversion) hloov lub analog kom muaj nuj nqis rau hauv cov digital ntau thiab xa tuaj rau tus plc;
-D / ib chav tsev (digital, kev hloov pauv kev hloov pauv), lub plc's digital ntim rau hauv txoj hlua khi, thiab tom qab ntawd xa mus rau sab nraud ntawm Circuit Court;
A / d thiab D / A muaj ib qho thiab ntau lub voj voog. Nruab Nrab thiab Loj PlC tsis tuaj yeem nqa cov kev sib txuas lus ntxiv, sib faib, thiab qee qhov muaj xwm txheej sib txawv, thiab cov kev ua haujlwm sib txawv, uas nyob rau hauv lem tsim cov khoom tawm sib raug zoo.
03 plC rau kev tsa suab tswj
PLC tuaj yeem tswj tau qhov hloov kom muaj nuj nqis, analog kom muaj nuj nqis, tab sis kuj tuaj yeem tswj cov lus tsa suab kom muaj nuj nqis. Piv txwv li, kev tswj hwm ntawm cov lus tsa suab lossis cov kab lus tawm ntawm cov tshuab (cov lus tsa suab ntau kuj tau qhia ua digital ntau).
Thaum Ntxov PlCs ncaj qha txuas txoj hauj lwm sensors, tab sis tam sim no lawv tuaj yeem siv cov lus tsa suab tswj cov modules lossis servo motors.
-PlCs tuaj yeem tau txais suav cov pulses nyob rau hauv ntau txoj kev thiab hauv ntau txoj kev, ntawm cov zaus ntawm ob peb k rau kaum ntawm k hz;
-Qhov PLCS tseem muaj cov mem tes tsim muaj nuj nqis ua haujlwm, thiab cov mem tes hluav taws tseem tuaj yeem nce mus rau kaum ntawm K;
Cov ob lub zog no, txuas nrog PLC muaj cov ntaub ntawv ua haujlwm thiab cov qauv kev tswj hwm kom tau, thiab tom qab ntawd cov qauv kev tswj hwm tau, thiab tom qab ntawd cov kev tswj hwm tau zoo, thiab tom qab kev sib cav sib ceg, kev hloov pauv thiab lwm yam.
04 PLC rau cov ntaub ntawv ua haujlwm
Nrog rau kev txhim kho ntawm PLC thev naus laus zis, kev hloov pauv ua lej, cov ntaub ntawv hloov, thiab kev ua haujlwm loj, koj tuaj yeem ua tiav cov ntaub ntawv tau txais, kev tshuaj xyuas thiab ua.
PLC tuaj yeem siv kev sib txuas lus ua haujlwm kom hloov mus rau lwm cov khoom siv ntse (xws li khoos phis tawj), thiab tom qab ntawd ua cov ntaub ntawv no, lossis sau lawv cov tshuab luam ntawv mus rau qhov.
05 plc rau kev tiv thaiv teeb tsa
PLC tus kheej xeem cov cim yog ntau, thiab muaj ntau cov khoom siv hauv sab hauv, uas tuaj yeem siv los saib xyuas cov haujlwm ntawm PlC nws tus kheej, lossis saib xyuas cov khoom tswj. Qhov no tuaj yeem txo cov kev ua tsis tiav (kev ua txhaum lossis nrhiav), tuaj yeem txhim kho lub sijhawm ua haujlwm hauv lub sijhawm ua haujlwm hauv lub sijhawm dawb, txhim kho kev ntseeg txoj kev ntseeg.
06 plc rau kev sib txuas, kev sib txuas lus
Plc networking, kev sib txuas lus muaj zog heev, tuaj yeem txuas nrog tus kheej lub computer, kev sib txuas lus, kev tswj hwm ntawm PLC kev tswj hwm. Thiab muaj tas li tshiab network kev teeb tsa tau pib.
Lub khoos phis tawm tuaj yeem tswj hwm thiab tswj hwm ntau plcs, txog 32.
-A PLC tuaj yeem txuas thiab sib txuas lus nrog ntau lub khoos phis tawm kom paub txog kev soj ntsuam ntawm PLC tswj cov txheej txheem los ntawm ntau cov khoom siv;
-Plc thiab plc tuaj yeem sib txuas lus nrog txhua tus, ib qho-mus rau-ib lossis ntau-rau-ntau li, ntau npaum li kaum los;
-Plc tuaj yeem txuas thiab sib txuas lus nrog cov khoom siv ntse thiab cov khoom siv hloov ntse (xws li cov hloov pauv hluav taws xob), uas tuaj yeem tsim cov chaw taws teeb tswj.
Plc yog hnub no lub khoos phis tawj tshuab ua haujlwm thiab cov kev xav tau ntse Hoobkas kev xav tau.
Plc ua rau kev lag luam tswj ntawm qhov taw tes, rau txoj kab, thiab tom qab ntawd txoj kab kev tswj hwm, kev tswj lub Hoobkas ntau lawm tuaj yeem tsim cov txiaj ntsig kev lag luam ntau dua.