MOORE  316107-182/1

咨詢熱線--17750626260　     

    當(dāng)前，在所有過程控制領(lǐng)域，大的發(fā)展趨勢(shì)之一就是Ethernet技術(shù)的擴(kuò)展。PLC也例外，現(xiàn)在，越來越多的PLC供應(yīng)商開始提供Ethernet接口部件。在近的幾年間，我們已經(jīng)看到，發(fā)展比現(xiàn)有普通小快靈PLC更加強(qiáng)大的PLC是種趨勢(shì)。Ethernet將會(huì)成為PLC的通信標(biāo)準(zhǔn)嗎？也許終結(jié)果是這樣的，但現(xiàn)在還為時(shí)尚早。對(duì)于在PLC上提供Ethernet接口將能夠解決所有通信問題，人們普遍存在著誤解。Ethernet僅僅定義了OSI參考模型底部的幾層協(xié)議標(biāo)準(zhǔn)，如果上層協(xié)議相互之間不能兼容，那么仍然不可能進(jìn)行相互之間的通信處理。打個(gè)比方，這如同一個(gè)不懂英語的中國人與一個(gè)不懂漢語的美國人之間是不能夠通過電話進(jìn)行對(duì)話一樣。因此，協(xié)議就是設(shè)備之間相互通信的語言。

    另一方面，前進(jìn)的步伐已經(jīng)邁出，我們只有迎著困難而上，為了將Ethernet技術(shù)應(yīng)用到工廠底層的現(xiàn)場過程控制設(shè)備中去，ODVA協(xié)會(huì)為此建立了一套性標(biāo)準(zhǔn)技術(shù)規(guī)范，即Ethernet/IP標(biāo)準(zhǔn)，以便能夠解決在實(shí)際工作中所遇到的困難。

【誠信經(jīng)營】【質(zhì)量可靠】【進(jìn)口原裝】【拆包防偽】

【超大庫存】【當(dāng)天付款】【順豐速運(yùn)】【歡迎搶購】
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廈門莫格電氣自動(dòng)化有限公司
張芳（銷售工程師）
電  話：0592-6514182/17750626260
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