一、總線型電動執行機構RS485總線(xian)介(jie)紹

當一(yi)個工(gong)廠使用(yong)更(geng)多(duo)的(de)電(dian)(dian)動(dong)(dong)閥門時(shi)，如何更(geng)好(hao)的(de)實(shi)現(xian)集中控(kong)(kong)制(zhi)并與(yu)自動(dong)(dong)化(hua)控(kong)(kong)制(zhi)系統(tong)(tong)相(xiang)適應(ying)，總(zong)線技術解決了這個問題，當電(dian)(dian)動(dong)(dong)執(zhi)行器(qi)與(yu)上位機現(xian)實(shi)總(zong)線控(kong)(kong)制(zhi)時(shi)，可以 不必再(zai)采用(yong)傳統(tong)(tong)的(de)多(duo)電(dian)(dian)纜(lan)控(kong)(kong)制(zhi)方式。智能電(dian)(dian)動(dong)(dong)執(zhi)行器(qi)采用(yong)標(biao)準接(jie)口（RS485、RS232）進行通訊，并將信號與(yu)處(chu)理器(qi)電(dian)(dian)路(lu)光電(dian)(dian)隔離，確保(bao)了電(dian)(dian)動(dong)(dong)執(zhi)行器(qi)的(de)安 全運行。電(dian)(dian)動(dong)(dong)執(zhi)行器(qi)實(shi)現(xian)總(zong)線控(kong)(kong)制(zhi)方便用(yong)戶利用(yong)計算機、組態軟件和I/O模塊來構(gou)建經濟(ji)高效的(de)控(kong)(kong)制(zhi)系統(tong)(tong)。 

傳(chuan)統(tong)電(dian)動(dong)執行器(qi)現場操(cao)作按鈕（或旋鈕）一(yi)般(ban)采用(yong)慣通軸，所以密封(feng)(feng)性能較差，智能型電(dian)動(dong)執行器(qi)一(yi)般(ban)采用(yong)非(fei)侵入式(shi)設計，操(cao)作按鍵(jian)與(yu)內(nei)部電(dian)路*隔(ge)離，使得(de)密封(feng)(feng)問題得(de)到*的(de)解決。實現了免(mian)開(kai)蓋設定、操(cao)作、查(cha)詢。 

二(er)、總線型電動執行機構RS485可選功能(neng)

?現場總(zong)線(xian)功能(neng)（可(ke)選(xuan)）：可(ke)選(xuan)配RS485工業(ye)總(zong)線(xian)通(tong)訊(xun)接口(kou)，可(ke)選(xuan)配Modbus RTU與(yu)PR0FIBUS通(tong)訊(xun)協(xie)(xie) 議，也(ye)可(ke)根據要求設(she)計其他通(tong)訊(xun)接口(kou)與(yu)協(xie)(xie)議。

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