P0961BC-CP40B

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廈門仲鑫達(dá)自動(dòng)化設(shè)備有限公司      

電話；0592-5085329              

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廈門市思明區(qū)湖濱東路湖光大廈8樓A座

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PLC是現(xiàn)代工業(yè)的三大支柱之一，是可靠性高、應(yīng)用非常廣泛的工業(yè)控制產(chǎn)品。在中大型模塊化的PLC產(chǎn)品中，CPU模塊（中央處理器）是PLC的中心。一些重大的工業(yè)生產(chǎn)線往往要求連續(xù)運(yùn)行不能停頓，而可靠性再高的PLC也不能保證故障為零，因此，雙CPU的冗余控制是一種滿足連續(xù)生產(chǎn)要求、提高系統(tǒng)可用性的有效手段。下面以熔鹽爐自控系統(tǒng)為實(shí)例詳述雙CPU冗余控制的實(shí)現(xiàn)方法。

一、熔鹽爐自動(dòng)系統(tǒng)綜述

熔鹽爐自控系統(tǒng)是一水硬鋁管道化溶出生產(chǎn)線上的重要環(huán)節(jié)，控制熔鹽的加熱和循環(huán)，用熔鹽的熱量去循環(huán)加熱鋁礦石漿。鋁礦石漿的加熱至關(guān)重要，影響最終產(chǎn)品—氧化鋁的質(zhì)量和產(chǎn)量，因此，熔鹽的溫度控制和循環(huán)控制非常重要。

由于熔鹽爐系統(tǒng)在管道化工程中的重要性，同時(shí)考慮到熔鹽是一種活躍的化學(xué)品，在不同的溫度下有不同的形態(tài)，低溫下凝固，高溫下不穩(wěn)定會(huì)發(fā)生化學(xué)反應(yīng)，從而腐蝕管壁甚至于爆炸，所以安全、可靠、操作簡(jiǎn)便和自動(dòng)化管理是系統(tǒng)設(shè)計(jì)的關(guān)鍵，因此考慮用一套雙CPU冗余的PLC、兩套工控機(jī)、高質(zhì)量的傳感器、變送器和執(zhí)行機(jī)構(gòu)來控制兩臺(tái)1200萬大卡的熔鹽爐、一臺(tái)鹽泵、一組鹽閥、一個(gè)熔鹽槽和其他相關(guān)設(shè)備，實(shí)現(xiàn)熔鹽的加熱和循環(huán)過程自動(dòng)化、計(jì)算機(jī)操作、監(jiān)控和管理的自動(dòng)化控制。

★我們承諾三高一低：

高品質(zhì)；高標(biāo)準(zhǔn)；高信譽(yù)；低價(jià)格

★我們承諾三大保證：

質(zhì)量保證；原裝保證；價(jià)格保證

★我們給與三個(gè)絕對(duì)：

絕對(duì)優(yōu)資；絕對(duì)原裝；絕對(duì)低價(jià)

★我們做足三個(gè)百分百：

百分百原裝；百分百優(yōu)資；百分百低價(jià)

ALLEN BRADLEY 1485AS-T1N5 SERIES A DEVICE NET FEMALE TERMINATOR

ALLEN BRADLEY 1485R-P3N5-M5 SERIES A CORDSET5 POLEMINIFAST

ALLEN BRADLEY 1492-CB1 G 005 SERIES B CIRCUIT BREAKER 1 POLE0.5 AMP

ALLEN BRADLEY 1492-CB1-F200 SERIES C CIRCUIT BREAKER277VAC20AMP

ALLEN BRADLEY 1492-CB1-G160 SERIES B CIRCUIT BREAKER240V16ASERI

ALLEN BRADLEY 1492-GHD100F SERIES A CIRCUIT BREAKER10AMP250VAC

ALLEN BRADLEY 1492-GHD100F SERIES A CIRCUIT BREAKER10AMP250VAC

ALLEN BRADLEY 800E-2DL3A PUSH BUTTON LATCH MOUNTFULL VOLTAGEAMBER

ALLEN BRADLEY 800EM-F2 SERIES A FLUSH PUSH BUTTONBLACK

ALLEN BRADLEY 800EM-M2 PUSH BUTTON OPERATOR MUSHROOM BLACK

P0961BC-CP40B

ALLEN BRADLEY 802T-W2A SERIES B ROLLER LEVER ADJUSTABLE NYLON

ALLEN BRADLEY 871A-TS5-NM3 CABLE TERMINAL CHAMBER 5 POLE MINI MALE

ALLEN BRADLEY 1489-A1C080 SERIES A 1 POLE CIRCUIT BREAKER 277V

ALLEN BRADLEY 1492-FB2J30-L SERIES B CLASS J FUSES ONLY 30 AMP 600V

ALLEN BRADLEY 800FP-P0PN3Y SERIES A AMBER PLASTIC PILOT LIGHT 24 VAC

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ALLEN BRADLEY 599-KD4 SERIES C SURGE SURPRESSOR 120VAC

ALLEN BRADLEY 100-MC SERIES B AUXILIARY CONTACT SIDE MOUNT 600VAC MAX

ALLEN BRADLEY 100-SAL11 SERIES B AUXILIARY CONTACT BLOCK SIDE MOUNT

ALLEN BRADLEY 800FM-F6MQ11 SERIES A BLUE PUSH BUTTON

ALLEN BRADLEY 1489-A1CO20 SERIES A UL 489 MINIATURE CIRCUIT

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ALLEN BRADLEY 800T-PSDT16 PILOT LIGHTSMALLDUAL INPUT50/60HZ

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ALLEN BRADLEY 100-FA31* SERIES A

ALLEN BRADLEY 1492-SP1D020 SERIES C

ALLEN BRADLEY 1492-SP1D100 SUPPLEMENTARY PROTECTORS SERIES C

ALLEN BRADLEY 800FM-MT44 SERIES A PUSH BUTTON

ALLEN BRADLEY 1489-A1C005 SERIES A MINI CIRCUIT BREAKER 1 POLE .5 AMP

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