abb AC-IOE-2C

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描述

abb AC-IOE-2C

主控制卡是整個系統(tǒng)的核心控制單元，完成系統(tǒng)的控制任務(wù)。而冗余技術(shù)各個設(shè)計要點在此得到充分應用?；槿哂嗟膬蓧K主控制卡軟件、硬件完全一致，它們執(zhí)行同樣的系統(tǒng)軟件和應用程序，在工作/備用冗余邏輯電路的控制下，其中一個運行在工作狀態(tài)（工作卡），另外一個運行在備用狀態(tài)（備用卡），如圖2所示。工作卡和備用卡之間具有公共的冗余邏輯控制電路和專用的高速對等冗余通訊通道，同時也可以通過I/O總線和過程控制網(wǎng)絡(luò)進行信息交互或故障診測?；槿哂嗟闹骺刂瓶ǘ寄茉L問I/O和過程控制網(wǎng)絡(luò)，備用模式下的主控制卡執(zhí)行診斷程序，監(jiān)視工作卡的狀態(tài)，通過周期查詢工作卡件中的數(shù)據(jù)存儲器，接受工作卡發(fā)送的實時控制運行信息。備用處理器可隨時保存最新的控制數(shù)據(jù)，以保證工作/備用的無擾動切換，但工作模式下的主控制卡起著控制、輸出、實時過程信息發(fā)布，等決定性的作用（具有發(fā)言權(quán)）。冗余技術(shù)的關(guān)鍵在于實現(xiàn)信息同步，而信息同步的最終目的是為了實現(xiàn)冗余部件之間無擾動切換。我們把信息同步的方法分為“自然同步”和“強制同步”。
? ? 互為冗余的兩個主控制卡作為一個整體與外界交換信息（網(wǎng)絡(luò)通訊、I/O通訊），共享進入這個整體的輸入信息，這就是冗余部件的同一性（也可以稱為單一性）。對外輸出信息時工作卡掌握主動權(quán)，代表這個整體發(fā)言，即冗余的協(xié)同性。通俗地講，兩個互為冗余的部件，對于用戶使用和外部控制對象而言，可被視為一個整體。
? ? 為了保證互為冗余的兩個卡件具有平等獲取外部信息（I/O通訊、網(wǎng)絡(luò)通訊）的權(quán)利，冗余部件具有同樣的通訊接口，保證卡件內(nèi)輸入信息的一致。冗余的兩塊卡件有各自的通訊通路，只要保證相同的輸入信息在兩個通信通路上同時進行傳輸，兩塊卡件就可以獲得相同的信息。這種憑借外部設(shè)備實現(xiàn)輸入信息的同步稱為“自然同步”?！白匀煌健卑l(fā)生在冗余系統(tǒng)和外部設(shè)備之間。工作卡掌握主動權(quán)，代表整體發(fā)言，并通過冗余通信將各種狀態(tài)信息傳送給備用卡，達到控制任務(wù)的同步，這就是“強制同步”?！皬娭仆健蓖ㄟ^冗余通信使備用卡內(nèi)部控制狀態(tài)與工作卡保持一致，它發(fā)生在互為冗余的卡件之間。根據(jù)變量特性的不同，具體采用的同步方式也各不相同.

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主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門子，摩托羅拉，安川。力士樂。ACSO，橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

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Tektronix TDS 310 TDS310 digital scope, NIST-calibrated
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Tektronix 2232 storage scope with RS232, NIST-certified
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專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣，選擇放心，售后無憂大量現(xiàn)貨，當天順豐發(fā)貨！
主營：本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂，ACSO，力士樂等各大品牌的DCS系統(tǒng)配件，機器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”（不管能不能看懂，先了解個大概，以便學習編程時查找）；
2、由位控邏輯入手，逐漸增加定時、計數(shù)等條件，把或、與、非關(guān)系理順；
3、進而練習整數(shù)運算、實數(shù)運算、類型轉(zhuǎn)換；
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解（最好是有個物理回路驗證，比如變頻器+電機+測速傳感器）；
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制（盡量避免跳轉(zhuǎn)，非跳不可時也是跳的越近越好）；
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列，GE 卡件 模塊 驅(qū)動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌，由于PLC的基本框架大同小異，學會一種至于其它的學習起來也就簡單了。

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