Cov teeb meem tseem ceeb ntawm kev sib txuas lus kub kub muaj xws li electromagnetic cuam tshuam cuam tshuam rau cov teeb liab kev ruaj ntseg, tsis sib xws ntawm cov txheej txheem ntawm ntau hom khoom siv ua rau muaj teeb meem kev koom ua ke, siab -precision tiag- lub sij hawm yuav tsum tau nkag siab rau lub network latency, thiab txo qis kev ntseeg ntawm cov ntaub ntawv sensor nyob rau hauv txoj haujlwm nyuaj.
1. Kev hem thawj ntawm Electromagnetic cuam tshuam (EMI) rau kev sib txuas lus zoo
Hauv kev txhaj tshuaj molding rhiav, siab - lub cev muaj zog, zaus hloov pauv, cov khoom siv cua sov, thiab lwm yam khoom siv ua haujlwm hnyav, tsim kom muaj lub zog hluav taws xob zoo ib puag ncig.
Cov tshuab kub khiav lawv tus kheej kuj tseem muaj - zaus hloov pauv kev ua (xws li lub sijhawm hloov pauv ntawm PID qhov kub thiab txias), uas yuav qhia tau ntau yam - hom thiab series- hom cuam tshuam los ntawm cov kab hluav taws xob lossis hluav taws xob spatial.
Cov kev cuam tshuam no tuaj yeem ua rau:
Poob los yog pov thawj yuam kev hauv cov ntaub ntawv sib txuas lus;
Sensor teeb liab drift (xws li thermocouple nyeem ntawv dhia);
Kev sib txuas lus hauv tsheb npav cuam tshuam, cuam tshuam rau - tswj lub sijhawm.
Cov tswv yim daws teeb meem: Siv cov ntaub thaiv kev sib tw -pair cables, ntxiv cov ntxaij lim dej sib nqus, thiab siv cov tshuab cais tawm digital (xws li Huapu Micro tsau-frequency rho tawm thev naus laus zis) txhawm rau txiav tawm cov kev cuam tshuam hauv av.
2. Fragmented Communication Protocols, High System Integration nyuaj
Cov tuam txhab sib txawv siv cov kev sib txuas lus sib txawv:
Synventive feem ntau txhawb EtherNet/IP;
HRSflow nyiam PROFINET;
Nruab nrab-rau- qis- kawg tshuab feem ntau siv Modbus RTU/TCP;
Emerging sensors txhawb IO-Txuas.
Qhov kev tsis sib haum xeeb no ua rau muaj teeb meem hauv qab no:
Kev teeb tsa rooj vag ntxiv yog xav tau rau kev hloov dua siab tshiab, nce nqi thiab cov ntsiab lus tsis ua haujlwm;
Cov ntaub ntawv tsis yooj yim thiab ncua debugging cycles;
Tsis muaj peev xwm ua tiav qhov kawg-rau- xaus cov ntaub ntawv sib txuas, cuam tshuam kev sib koom ua ke ntawm MES/SCADA.
Cov Lus Qhia Pom Zoo: Ua ntej tshaj qhov ntsuas kub ntsuas kub uas txhawb nqa ntau- raws tu qauv sib xws, lossis siv ntug kev siv lub rooj vag rau kev sib koom ua ke hloov dua siab tshiab.
3. Siab tiag -Lub Sijhawm Yuav Tsum Tau, Intolerable Network Latency
Kev tswj kub khiav yuav tsum tau millisecond - theem teb rau kev hloov pauv kub thiab valve koob txiav txim cov lus txib.
Network congestion los yog ntev heev PLC scan cycles yuav ua rau:
Kub tswj lag, ua rau cov khoom degradation los yog tsis txaus filling;
Asynchronous valve koob qhib thiab kaw, ua rau flash lossis txhaj tshuaj luv luv.
Tshwj xeeb tshaj yog nyob rau hauv ntau-kab noj hniav siab- nrawm molding scenarios, kev sib txuas lus latency ncaj qha cuam tshuam cov khoom sib xws.
Kev daws: Ua haujlwm Ethernet (xws li PROFINET IRT hom) kom ntseeg tau tias kev sib kis tau zoo, zam kev siv cov khoom lag luam zoo tib yam.
4. Hnyav Lub Cev Ib puag ncig cuam tshuam rau kev sib txuas lus kev ntseeg siab Lub chaw ua haujlwm kub khiav yog tus cwj pwm los ntawm peb qhov siab: kub siab, siab humidity, thiab siab vibration.
Kev ua haujlwm ntev - lub sijhawm ua haujlwm tau yooj yim ua rau:
Connector oxidation thiab loosening, ua rau lub teeb liab cuam tshuam;
Cable rwb thaiv tsev laus, ua rau luv luv Circuit Court los yog to;
Sensor drift, ua rau distorted cov ntaub ntawv tawm tswv yim.
Kev tiv thaiv:
Siv siab- kub resistant (Ntau tshaj los yog sib npaug rau 150 degree) aviation plugs thiab silicone- sheathed cables;
Ua kev sib txuas lus tsis tu ncua ntawm tus kheej - kuaj mob;
Pab kom tus tswj qhov kub thiab txias ntawm "xaim breakage detection" thiab "qhib Circuit Court tswb" ua haujlwm.
5. Qhov Kev Sib Tw Sib Nqus Sib Nqus Sib Tsoo thiab Tus Nqi hauv Kev Txhim Kho Digital Thaum txhim kho cov cuab yeej qub qub, feem ntau ntsib cov teeb meem hauv qab no:
Cov teeb liab analog uas twb muaj lawm (4-20mA) yog qhov nyuaj rau kev hloov kho ncaj qha rau kev sib txuas lus digital;
Hloov tag nrho qhov system yog kim thiab muaj lub sijhawm them rov qab ntev;
Cov neeg ua haujlwm tsis paub txog cov txheej txheem tshiab, nce nqi kev cob qhia.
Ib txoj hauv kev yooj yim: Cov nozzles digital txhawb nqa IO-Txuas tuaj yeem muab ntxiv rau cov kab noj hniav tseem ceeb ua ntej, maj mam nce mus rau digitalization thiab txo qhov kev pheej hmoo ntawm ib qho - sijhawm peev.
Hauv cov ntsiab lus, cov kev sib tw ntawm kev sib tw kub kub digital kev sib txuas lus tsis yog nyob rau hauv lub tshuab nws tus kheej xwb, tab sis kuj nyob rau hauv txoj kev sib cuam tshuam ntawm cov txheej txheem - theem kev koom ua ke, ib puag ncig adaptability, thiab kev lag luam muaj peev xwm. Kev ua tiav yuav tsum tau ua tib zoo xav txog kev xaiv kho vajtse, cov qauv cabling, kev npaj raws tu qauv, thiab kev khiav hauj lwm thiab kev tswj xyuas.
