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P0917HB控制模塊FBM221運(yùn)用來自廠房內(nèi)的實(shí)時(shí)數(shù)據(jù)，操作人員能夠在操控室內(nèi)依據(jù)所得的信息擬定抉擇計(jì)劃?？墒?，要使操控體系具有輸呈現(xiàn)場(chǎng)數(shù)據(jù)的功用是很艱難的。公司體系一般選用規(guī)范的ODBC，ADO和XML以取得來自主動(dòng)化體系的數(shù)據(jù)。PLC
只能經(jīng)過規(guī)范的OPC進(jìn)行通訊，這意味著需要添加一臺(tái)PC來選用OPC獲取數(shù)據(jù)并運(yùn)用如ODBC(敞開數(shù)據(jù)厙互連)、ADO(數(shù)據(jù)主動(dòng)化規(guī)劃)和XML(可拓展描寫言語)這么的規(guī)范把數(shù)據(jù)傳送給公司。為了能有用地把現(xiàn)場(chǎng)數(shù)據(jù)傳送到ERP體系中，操控體系有必要能直接和外部數(shù)據(jù)庫通訊，據(jù)此，徹底能夠運(yùn)用PAC來結(jié)束這些作業(yè)。
*網(wǎng)絡(luò)傳送數(shù)據(jù)對(duì)數(shù)據(jù)加密
P0917HB控制模塊FBM221在把操控體系與數(shù)據(jù)庫和網(wǎng)絡(luò)銜接時(shí)，是需要思考安全疑問的。出于安全的利益，很多廠商挑選不把主動(dòng)化體系和公司數(shù)據(jù)庫相連，可是關(guān)于大多數(shù)廠商而言，銜接所帶來的長處要遠(yuǎn)大于安全方面的顧忌。盡管能夠?qū)LC加鎖來避免他人侵略工廠的網(wǎng)絡(luò)，可是因?yàn)镻LC經(jīng)過以太網(wǎng)發(fā)送非加密包，所以它并不適合用于避免黑客侵略。PAC在經(jīng)過網(wǎng)絡(luò)傳送數(shù)據(jù)時(shí)，能夠?qū)?shù)據(jù)加密。盡管如今這還不是需要思考的榜首要素，可是在將來它將是廠房內(nèi)散布式體系選用PAC的首要要素。
*多種速度與多個(gè)循環(huán)確實(shí)定性運(yùn)用
PLC只能以固定的速度作業(yè)，而且它并不是為能以不一樣循環(huán)速率獨(dú)立進(jìn)行處理所規(guī)劃的。但如今，雜亂的操控體系中常需要多種速率確實(shí)定性運(yùn)用，它需要有多個(gè)循環(huán)，每個(gè)循環(huán)以不一樣的速率作業(yè)。這就請(qǐng)求能進(jìn)行并行處理，而只需在PAC上作業(yè)的操作體系才具有這么的特性。

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