EtherNet/IP是工業(yè)以太網(wǎng)協(xié)議的縮寫(xiě),它是一種開(kāi)放的工業(yè)網(wǎng)絡(luò)標(biāo)準(zhǔn),充分利用了現(xiàn)有的商用以太網(wǎng)技術(shù)、芯片以及物理介質(zhì)。同時(shí),EtherNet/IP與DeviceNet和ControlNet一樣,在應(yīng)用層也使用CIP(通用工業(yè)協(xié)議)協(xié)議。到2007年采用CIP協(xié)議的設(shè)備在全球已經(jīng)有1000萬(wàn)個(gè)安裝節(jié)點(diǎn)。自二十世紀(jì)七十年代中期以來(lái),以太網(wǎng)已經(jīng)成為世界公認(rèn)的標(biāo)準(zhǔn)。以太網(wǎng)之所以能夠廣泛普及,正是由于它在全球范圍內(nèi)擁有眾多的設(shè)備供應(yīng)商。因此,選擇以太網(wǎng)不僅符合當(dāng)今發(fā)展趨勢(shì),而且還能夠讓您從Internet上獲取現(xiàn)場(chǎng)設(shè)備的數(shù)據(jù)。
以前,在工業(yè)自動(dòng)化領(lǐng)域以太網(wǎng)只是用于信息監(jiān)控、編程和診斷等。現(xiàn)在,用戶越來(lái)越希望能夠在控制系統(tǒng)中采用工業(yè)以太網(wǎng)。因此,EtherNet/IP應(yīng)運(yùn)而生,它同時(shí)支持隱式報(bào)文(實(shí)時(shí)控制數(shù)據(jù))和顯式報(bào)文(信息交換)。EtherNet/IP作為一種開(kāi)放的網(wǎng)絡(luò),它使用了一系列現(xiàn)有的成熟技術(shù)和標(biāo)準(zhǔn):
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IEEE 802.3物理層和數(shù)據(jù)鏈路層標(biāo)準(zhǔn)
以太網(wǎng)TCP/IP協(xié)議(傳輸控制協(xié)議/網(wǎng)際協(xié)議)和工業(yè)以太網(wǎng)標(biāo)準(zhǔn)
利用CIP協(xié)議進(jìn)行實(shí)時(shí)I/O控制和點(diǎn)對(duì)點(diǎn)的信息交換
現(xiàn)在,CIP協(xié)議的兩個(gè)擴(kuò)展協(xié)議CIP Safety和CIP Sync也成功的運(yùn)用在EtherNet/IP上,這樣通過(guò)EtherNet/IP就可實(shí)現(xiàn)安全網(wǎng)絡(luò)和高精度時(shí)間同步應(yīng)用。另外EtherNet/IP通過(guò)CIP Motion可以實(shí)現(xiàn)運(yùn)動(dòng)控制,預(yù)計(jì)2009年,將推出EtherNet/IP的運(yùn)動(dòng)控制產(chǎn)品,到時(shí)將可通過(guò)EtherNet/IP實(shí)現(xiàn)分布式運(yùn)動(dòng)控制應(yīng)用。Siemens Sinumerik 3M Sirotec Kuka 6FX1120-3BB01
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