廈門莫格電氣自動(dòng)化有限公司

GE DS200DPCBG1AAA

咨詢熱線--17750626260　

PAC目前鎖定的大應(yīng)用領(lǐng)域仍是工控，而來自工廠的實(shí)時(shí)數(shù)據(jù)可以令管理階層擁有更豐富的信息資源，以便借此進(jìn)行決策，但是要安裝能夠提供工廠數(shù)據(jù)的系統(tǒng)可能相當(dāng)困難。企業(yè)系統(tǒng)通常會(huì)通過ODBC、ADO及XML等標(biāo)準(zhǔn)輸入來自自動(dòng)化系統(tǒng)的數(shù)據(jù)。PLC的做法是通過OPC之類的標(biāo)準(zhǔn)提供通信能力，也就是說，必須加入PC才能使用
　　OPC來取得數(shù)據(jù)，并且使用ODBC、ADO和刀ilL之類的標(biāo)準(zhǔn)將數(shù)據(jù)反饋給企業(yè)。而PAC可 以有效地將工廠數(shù)據(jù)整合至ERP系統(tǒng)中，讓控制系統(tǒng)能夠直接和外部數(shù)據(jù)庫通信。而當(dāng)控制系統(tǒng)連接至數(shù)據(jù)庫及網(wǎng)站時(shí)，安全性的問題開始出現(xiàn)。為了獲得 高的安全性，許多廠商選擇不要將自動(dòng)化系統(tǒng)與企業(yè)連接。但是大致上來說，連接的優(yōu)點(diǎn)遠(yuǎn)超過安全問題，雖然PLC可以保護(hù)它不被工廠的入侵者偷竊，但是PLC難以對抗以以太網(wǎng)絡(luò)連接端口未受保護(hù)封包為目標(biāo)的黑客。PAC可以在利用網(wǎng)絡(luò)傳輸數(shù)據(jù)之際進(jìn)行編碼，因此而保護(hù)資料。雖然這在今天可能不是關(guān)注的焦點(diǎn)，但是在將來，它可能會(huì)是影響PAC進(jìn)駐工廠的主要因素。

ADAPTABEACON VISUAL SIGNALING APPLIANCE 104SLEDG-G1
 
SAFETY LENS COVER 3 1/2"
 
TELEMECANIQUE 7W 240V YELLOW LENS STACK LIGHT XVA-L3C 99097
 
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SALISBURY 11 ANSI/ASTM ELECTRICAL GLOVE D120 TYPE 1
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