Txhim khu kev qha thiab ruaj khov kev sib txuas lus interconnectivity yog lub lifeblood ntawm industrial automation. Muab ntau lub sensors thiab actuators nyob rau hauv cov khoom siv, thiab ntau lub tshuab thiab cov txheej txheem uas muaj nyob rau hauv tiag tiag -world industrial scenarios, countless tsoos gateways yog ua hauj lwm rau xa thiab hloov cov ntaub ntawv nyob rau hauv tag nrho cov txheej txheem. Kev lag luam automation yuav tsum suav rau IT systems cov cai rau qhib cov ntaub ntawv nkag thiab tiag - tswj sijhawm.
Kev lag luam Ethernet tau ua lub luag haujlwm tseem ceeb hauv qhov no, txhim kho kev ua tau zoo thiab kev sib koom ua ke ntawm cov ntaub ntawv loj - cov ntaub ntawv kis tau tus mob piv rau fieldbus systems. Kho vajtse- ntse, Ethernet hloov khoom siv suav nrog Ethernet hloov chips, CPUs, PHYs, PCBs, thiab interface / chaw nres nkoj subsystems, nrog rau Ethernet hloov nti yog qhov tseem ceeb. Cov chips no tshwj xeeb rau kev hloov thiab ua cov ntaub ntawv loj thiab xa xov xa mus, ua haujlwm raws li daim ntawv thov -kev ua haujlwm zoo tshaj plaws rau kev sib txuas lus. Cov chaw hloov pauv loj feem ntau muab kev lag luam - qib cov khoom lag luam nrog kev txhawb nqa dav dav thiab kev ua haujlwm zoo.
Hloov Chip Integration
Network switching functions feem ntau yog siv ntawm Ethernet's Layer 2 MAC. Thaum Ntxov Ethernet hloov chips feem ntau tsuas muaj MAC txheej, tso siab rau PHY chips ntawm Txheej 1 los tsim kev sib txuas Ethernet tiag tiag. Nrog kev txhim kho thev naus laus zis thiab kev xav tau ntawm cov neeg siv ntau ntxiv rau cov qauv tsim qauv yooj yim, network hloov chips kev sib koom ua ke ntawm lub cev txheej (PHY) thiab txuas txheej (MAC) tau tshwm sim thiab tau txais kev pom zoo.
Tam sim no, ntau 10M / 100M hloov chips tau ua tiav qhov kev koom ua ke no. Txawm li cas los xij, 10G hloov chips thiab Gigabit chaw nres nkoj ntawm cov qauv hloov pauv tseem feem ntau xav tau PHY chips siab. Thaum tham txog Ethernet kev sib txuas, Broadcom yog tus neeg tseem ceeb. Broadcom tau ntev dhau los ua tus thawj coj hauv Ethernet hloov nti sector, muab kev lag luam ntau yam ntawm Ethernet hloov khoom siv thiab chips.
Hais txog kev koom ua ke, Broadcom's Roboswitch architecture Ethernet hloov kev daws teeb meem nta 5-24 chaw nres nkoj teeb tsa txhawb nqa Fast Ethernet thiab Gigabit Ethernet (GbE). Nyob rau hauv cov high-ceev thiab Gigabit Ethernet hloov cov kev daws teeb meem, tag nrho cov haujlwm ntawm lub siab -kev hloov pauv ceev- suav nrog cov pob ntawv buffers, lub cev txheej txheej transceivers, media access controllers (MAC), chaw nyob tswj, chaw nres nkoj-raws li kev tswj hwm tus nqi, thiab tsis yog - thaiv kev sib txuas ntawm OS rau hauv ib qho chips. Qhov kev sib koom ua ke no yog qhov tshwj xeeb tshaj plaws rau cov ntawv thov kev lag luam.
Txhawm rau kom ntseeg tau tias cov ntaub ntawv muaj peev xwm ua tau zoo thaum lub sijhawm ua haujlwm sib koom tes, cov txheej txheem sab hauv ntawm cov nti hloov pauv yog qhov nyuaj heev. Kev lag luam- ua qauv tsim los ntawm cov tuam txhab loj loj txhawb nqa ntau qhov nrawm suav nrog 100M / 1GE / 2.5GE thiab 10GE, siv 2.5GbE / 10GbE nrawm kom ua tiav siab -kev sib txuas ceev. Lub nti hloov pauv tseem suav nrog CPU ncaj qha rau hauv nws, ua kom tsim tau ib qho -CPU- tswj kev hloov pauv platform uas txhawb nqa hom cascading yam tsis tas yuav muaj cov txheej txheem sab nraud.
Nyob rau hauv cov ntaub ntawv chaw teeb meem thiab kev sib sib zog nqus kev kawm network daim ntawv thov, hloov chips ua tiav txawm ntau dua integration theem. Piv txwv li, kev ua lag luam siab tshaj - kev sib koom ua ke, siab tshaj -bandwidth StrataXGS series nta kev sib koom ua ke ib leeg -chip cov kev daws teeb meem muaj peev xwm ntsuas tau los ntawm ntau lub gigabits mus rau ob peb terabits.
Multi-Txoj kev txhawb nqa
Feem ntau ntawm cov txheej txheem kev sib txuas lus hauv kev lag luam tau lees paub dav dav, thiab ntau - cov txheej txheem hloov cov chips yuav tsum muaj kev thov rov hais dua ntau dua hauv cov ntawv thov kev lag luam, txo qis kev tsim qauv. ADI's FIDO5100 thiab FIDO5200 multi- raws tu qauv hloov chips ua tiav raws tu qauv kev txhawb nqa los ntawm kev hloov kho, siv firmware rub tawm los ntawm tus tswv tsev processor. Cov firmware no tau muab tso rau hauv qhov tiag -time Ethernet multi- tus txheej txheem hloov tsav tsheb thiab rub tawm thaum lub hwj chim- nce.
(Kev them nyiaj yug tag nrho raws tu qauv, ADI)
Scalable thiab saj zawg zog configurations enables tus hloov nti mus seamlessly interface nrog ib tug tswv tsev processor. Los ntawm kev siv cov cuab yeej tsav tsheb rau cov txheej txheem tshwj xeeb, nws ua kom yooj yim faib cov txheej txheem sib faib thaum muab kev ywj pheej ntau dua los siv cov txheej txheem txheej txheem los ntawm ib tus neeg muag khoom-tsuas yog sib xyaw cov txheej txheem txheej txheem nrog ntau- txheej txheem hloov nti tsav tsheb. Lub nti hloov pauv ntau- raws tu qauv txhawb nqa kev ua tau zoo hauv kev lag luam automation scenarios.
Unrelenting Pursuit of Efficient Data Transmission and Real -Thov kom sij hawm
Txawm hais tias cov txheej txheem thev naus laus zis, cov ntsiab lus tseem ceeb rau kev sib kis tau zoo thiab tsis tshua muaj latency tseem nyob tas li rau cov chips hloov. Qhov no yog qhov tseem ceeb tshwj xeeb hauv cov ntawv thov kev lag luam uas qhov kev tswj hwm kev txav mus los xav kom nruj tiag tiag - lub sijhawm ua haujlwm. Cov lus hais saum toj no FIDO ua haujlwm ntiav Timer Control Unit (TCU) los siv cov txheej txheem synchronization rau ntau yam kev lag luam Ethernet raws tu qauv, txhawb nqa EtherCAT lub sijhawm voj voog qis li 12.5μs thiab PROFINET lub sijhawm voj voog qis li 31.25μs.
Microchip's ib zaug -chip VSC75XTSN series sib txuas ua ke tag nrho cov khoom siv txhawb nqa rau IEEE 1588v2 Precision Time Protocol (PTP), suav nrog cov khoom siv sijhawm teem sijhawm rau txhua PHY-MAC interfaces thiab siab - kho vajtse PTP moos. Qhov no muab cov sub-microsecond synchronization rau ntau yam kev siv Ethernet. Qhov kev thov tiag tiag - sijhawm, siab - kev sib txuas ua tau zoo txuas ntxiv tsav cov chips hloov mus rau kev sib kis tau zoo dua thiab qis dua -latency synchronization.
Cov ntsiab lus
Raws li cov tes hauj lwm hloov ntawm ib txwm fieldbus thiab 4mA mus rau 20mA kev sib txuas mus rau Industrial Ethernet, ntau yam teeb meem tshwm sim thaum lub sij hawm tsim thiab kev siv theem ntawm kev sib txuas network. Qhov no tau tsav lub evolution ntawm Ethernet hloov chips. Lub zog thiab hloov pauv hloov chips coj cov ntawv thov kev lag luam los ze zog kom ua tiav qhov zoo tshaj plaws Industrial Ethernet txuas.