Paub meej txog PLC tswj txee qhov tseem ceeb

Daim ntawv thov txee yog cov cuab yeej tseem ceeb ntawm kev lag luam automation niaj hnub, uas muaj ntau yam kev tiv thaiv hluav taws xob xws li overload, luv Circuit Court, thiab theem poob. Tag nrho cov qauv yog compact, kev ua haujlwm ruaj khov, thiab cov haujlwm ua tiav. Nws tuaj yeem hloov kho tau yooj yim ua ke thiab hloov kho raws li qhov ntsuas qhov tseeb. Nws tuaj yeem tsis tsuas yog ua tiav kev tswj hwm tsis siv neeg tswj hwm ntawm ib lub txee xwb, tab sis kuj paub txog kev sib txuas ntawm ntau lub txee los tsim ib qho kev tswj hwm kev faib tawm (DCS) los ntawm kev lag luam Ethernet thiab industrial fieldbus, ua kom haum rau ntau yam kev lag luam automation tswj scenarios loj, nruab nrab, thiab me me.

Nrog zoo adaptability thiab stability, hom PLC vaj huam sib luag tswj logic kev pab cuam stainless hlau tsis siv neeg txee yog dav siv nyob rau hauv ntau yam xws li fais fab, metallurgy, chemical engineering, papermaking, environmental wastewater kho, thiab automated ntau lawm kab. Nws tuaj yeem ua tiav cov khoom siv automation thiab txheej txheem automation tswj, nrog rau ua tiav kev sib txuas lus hauv network. Nws tuaj yeem ua ke nrog tib neeg- tshuab interface kov npo rau kev ua haujlwm yooj yim, thiab tseem tuaj yeem ua tiav cov ntaub ntawv xa mus, kev tswj chaw taws teeb, thiab saib xyuas lub sijhawm tiag tiag nrog DCS lub tsheb npav sab saud thiab lub computer tswj kev lag luam los ntawm kev sib txuas lus xws li Modbus thiab Profibus.

Cov khoom tseem ceeb ntawm PLC tswj txee tau teeb tsa raws li xav tau, thiab tag nrho cov khoom tseem ceeb yog qhov tseem ceeb. Cov khoom pab cuam raug ntxiv lossis tshem tawm raws li qhov xwm txheej. Raws li lub zog tseem ceeb ntawm lub txee, qhov hloov pauv huab cua yog qhov kev teeb tsa ntawm txhua lub txee tswj, lub luag haujlwm rau tag nrho lub hwj chim qhib / tawm thiab kev tiv thaiv thawj.

PLC yog lub hauv paus tswj chav tsev ntawm PLC txee cov khoom. Rau cov haujlwm me me, kev sib xyaw PLC tuaj yeem siv tau, thaum rau cov haujlwm loj thiab nyuaj, daim npav modular PLC yuav tsum tau ua. Hauv qee qhov kev ntseeg siab, cov txheej txheem rov ua dua yuav tsum tau teeb tsa; 24VDC hloov fais fab mov yog siv los muab lub zog rau qis -voltage Cheebtsam. Feem ntau PLCs tuaj nrog cov khoom siv fais fab no, thiab nws tuaj yeem txiav txim siab seb puas yuav ntxiv nws cais raws li qhov xav tau tiag tiag; Relays feem ntau yog siv rau cov teeb liab voltage hloov dua siab tshiab.

Thaum PLC tso zis teeb liab tsis phim qhov voltage specifications ntawm kev tswj Circuit Court, cov lus qhia yuav tsum tau kis los ntawm relays kom haum raws li qhov sib txawv tswj Circuit Court; Cov kab hluav taws xob txuas hluav taws xob yog siv los ua qauv kev sib txuas ntawm kab thiab tuaj yeem hloov kho tau yooj yim raws li tus lej ntawm cov cim. Yog tias yuav tsum muaj cov cuab yeej sab nraud lossis kev sib txuas rau lub khoos phis tawj sab saud, cov khoom pabcuam ntxiv xws li cov hloov pauv cua thiab cov hloov pauv tuaj yeem ntxiv.

PLC vaj huam sib luag txee yuav tsum tau khiav lag luam nyob rau hauv ib puag ncig raws li kom ntseeg tau tias ntev - ua haujlwm ruaj khov. Cov kev siv tseem ceeb tau muab faib ua peb pawg: kev siv hluav taws xob, qib kev tiv thaiv, thiab ib puag ncig. Cov khoom siv hluav taws xob tuaj yeem yog DC 24V lossis ob -theem AC 220V, thiab qhov hloov pauv ntawm qhov hluav taws xob yuav tsum tau tswj ntawm -10% thiab +15%, nrog rau qhov zaus ntawm 50Hz. Cov qib kev tiv thaiv ib puag ncig ntawm lub txee yog IP41 lossis IP20, haum rau kev tiv thaiv ib puag ncig kev lag luam.

Hais txog ib puag ncig, kev ua haujlwm kub ntawm PLC-raws li tswj txee yuav tsum tau khaws cia ntawm 0℃thiab 55 degree, tsis txhob raug tshav ntuj ncaj qha, nrog rau cov av noo tsawg dua 85% thiab tsis muaj condensation; Qhov chaw teeb tsa yuav tsum nyob deb ntawm qhov chaw muaj zog vibrations, zam kev vibrations tsis tu ncua lossis tsis tu ncua nrog zaus ntawm 10-55HZ, thiab tsis txhob siv rau hauv ib puag ncig uas muaj corrosive thiab flammable gases los tiv thaiv kev puas tsuaj rau cov khoom siv sab hauv thiab cuam tshuam rau kev tswj kom raug.

Industrial PLC txee yog qhov tseem ceeb ntawm lub khoos phis tawj tshwj xeeb uas tsim los rau kev tswj hwm kev lag luam, nrog cov khoom siv kho vajtse zoo ib yam li lub tshuab computer, thiab cov tub ntxhais uas muaj rau lub ntsiab lus tseem ceeb. Lub hwj chim module muab lub zog ruaj khov rau tag nrho lub cev thiab tuaj yeem hloov mus rau AC voltage hloov ntawm ± 10% - ± 15%, kom ntseeg tau qhov kev ua haujlwm tsis tu ncua ntawm qhov system; Lub chaw ua haujlwm hauv nruab nrab (CPU) yog lub chaw tswj hwm lub luag haujlwm rau kev txais thiab khaws cia cov neeg siv cov kev pab cuam, kuaj xyuas cov khoom tsis raug, luam theej duab tawm tswv yim thiab cov teeb liab tawm, thiab ua haujlwm cov haujlwm. Cov PLC loj feem ntau siv dual CPU redundancy lossis peb lub CPU pov npav los txhim kho kev ua haujlwm kom ntseeg tau ntxiv.

Lub cim xeeb tau muab faib ua qhov system program nco thiab cov neeg siv qhov program nco, uas feem ntau khaws cov software thiab cov neeg siv daim ntawv thov software; Lub input/output interface circuits ntawm Standard PLC txee paub qhov kis tau tus mob ntawm - site signals thiab tswj cov lus qhia, uas muab faib ua ob qhov chaw: input coupling Circuit Court thiab tso zis tsav Circuit Court; Tsis tas li ntawd, nws tau nruab nrog suav, qhov chaw thiab lwm yam kev ua haujlwm, nrog rau kev sib txuas lus module kom ua tiav kev sib txuas lus hauv network, kom ua tiav cov haujlwm tswj kev ua haujlwm automation.

Yog hais tias koj muaj tej yam kev xav tau xws liPLC tswj txeexaiv, customized tsim, kev debugging, los yog kev hloov kho, thov koj xav tiv tauj peb rau kev sib txuas lus txhua lub sijhawm. Peb yuav muab ib qho kev tshaj lij thiab siv tau ib qho - nres PLC Hluav taws xob tswj txee kev daws teeb meem raws li koj qhov xwm txheej kev lag luam thiab kev tswj hwm.