6ES7421-1BL01-0AA0 西門(mén)子-儀表網(wǎng)

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廈門(mén)仲鑫航自動(dòng)化設(shè)備有限公司是一家專(zhuān)業(yè)從事品牌（DCS系統(tǒng)）（機(jī)器人系統(tǒng)）（大型伺服控制系統(tǒng)）模塊備件銷(xiāo)售,公司產(chǎn)品內(nèi)容為分布式控制系統(tǒng)(DCS) ,可編程序控制器(PLC)， MOTOROLA MVME工業(yè)用模組，工業(yè)控制通訊轉(zhuǎn)換器(Anybus) ，遠(yuǎn)端輸出/輸入模塊(RTU) ，工業(yè)電腦(IPC)、工業(yè)用低頻螢?zāi)?IPC) ，人機(jī)界面SCSI(50,68,80Pin) AnyBus(Gateway)現(xiàn)已成一家性的工業(yè)自動(dòng)化備件及零部件的銷(xiāo)售企業(yè)！??！

公司自成立以來(lái)始終堅(jiān)持以純電子商務(wù)模式運(yùn)營(yíng)，縮減中間環(huán)節(jié)，為消費(fèi)者在*時(shí)間提供優(yōu)質(zhì)的產(chǎn)品及滿(mǎn)意的服務(wù)，為您的生產(chǎn)以及采購(gòu)工作提供‘安全快捷方便’公司擁有完善的物流供應(yīng)系統(tǒng)，現(xiàn)已與眾多國(guó)外品牌生產(chǎn)廠商建立了良好的合作關(guān)系。

公司能直接從境外進(jìn)貨，能夠提供不同國(guó)別、廠商的設(shè)備以及備件，解決您多處尋找的麻煩或?qū)Ξa(chǎn)品質(zhì)量問(wèn)題的擔(dān)心等,在價(jià)格上我們有很大的優(yōu)勢(shì)，產(chǎn)品詳細(xì)信息，竭誠(chéng)歡迎您來(lái)電查詢(xún)或使用E-mail查詢(xún)！

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產(chǎn)品簡(jiǎn)介在線(xiàn)詢(xún)價(jià)

SIEMENS 6ES7421-1BL01-0AA0
SIEMENS 6ES7421-1BL01-0AA0
SIEMENS 6ES7421-1BL01-0AA0

西門(mén)子產(chǎn)品詳情

SIEMENS 6ES7421-1BL01-0AA0

分布式處理單元的冗余根據(jù)冗余度可以分為冗余度為1∶1和1∶n兩種情況。這在每個(gè)DCS廠家的產(chǎn)品中是不同的。這兩種方式各有優(yōu)缺點(diǎn)。這里介紹的是冗余度為1∶1的冗余設(shè)置。

分布處理單元冗余度為1∶1，就是將2塊組態(tài)*一樣的控制器設(shè)置成冗余方式。在投入運(yùn)行時(shí)，若出現(xiàn)故障，兩分布處理單元之間能實(shí)現(xiàn)無(wú)擾動(dòng)切換，保證系統(tǒng)的正常運(yùn)行。

本系統(tǒng)所采用的分布處理單元均帶3個(gè)網(wǎng)絡(luò)接口，其中2個(gè)網(wǎng)口分別連接到A網(wǎng)和B網(wǎng)，實(shí)現(xiàn)各工作站點(diǎn)間的數(shù)據(jù)通信，第3個(gè)網(wǎng)口通過(guò)對(duì)等網(wǎng)數(shù)據(jù)連接子分布處理單元間（對(duì)等網(wǎng)數(shù)據(jù)現(xiàn)可選用光纖作傳輸介質(zhì)），用來(lái)傳輸主、從分布處理單元之間的備份數(shù)據(jù)；分布處理單元之間的狀態(tài)信息由串口傳輸。

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關(guān)鍵詞：工作站 NMR

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