RTU的通訊和 由于RTU是專用的器件，現(xiàn)在還沒有統(tǒng)一的，尤其是在通訊方面，通常情況下一個(gè)產(chǎn)家的RTU是不能和另一個(gè)產(chǎn)家的RTU混用的。協(xié)議的轉(zhuǎn)化和競(jìng)爭(zhēng)已經(jīng)形成了一個(gè)產(chǎn)業(yè)。近期自動(dòng)化學(xué)會(huì)專家會(huì)將向市場(chǎng)發(fā)布RTU的通用，這些大致包括如下： @ 通信DNPs和IEC870。 @ RTU編程IEC1131-3。 處理器單元可以包含一個(gè)內(nèi)置的或的modem。這些modems可以通過無條件租借的聲音級(jí)電話線或類似的聲道如：微波、無線電、光纖。也可以用異步串行數(shù)據(jù)端口來代替modem，來擴(kuò)展通訊設(shè)備大可達(dá)36.6Kbaud。 處理器連續(xù)的選擇輸入通道將當(dāng)前的狀態(tài)或模擬量和以前的狀態(tài)作對(duì)比。如果模擬量的改變超過了死區(qū)限，就會(huì)向監(jiān)控中心通知發(fā)生了狀態(tài)改變；如果沒有改變發(fā)生，一個(gè)簡(jiǎn)短的確認(rèn)會(huì)返回到監(jiān)控中心。所有其他的信息都是在連續(xù)選取信息將交叉存取的，在忽略選取掃描時(shí)間沖突時(shí)，優(yōu)的響應(yīng)時(shí)間。
【公 司】： 福建鴻飛達(dá)自動(dòng)化科技有限公司福建省福州市高新區(qū)新保路正榮財(cái)富中心SOHO B幢8樓
產(chǎn)品價(jià)格以電話或者QQ詢價(jià)為準(zhǔn)，發(fā)布價(jià)格不做參考，圖片也一樣
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