C4713-60100 C4713-60100
就像羅馬并不是一天建成的，現(xiàn)代工業(yè)控制系統(tǒng)也經(jīng)歷了啟蒙時(shí)代、古典主義時(shí)期才完成現(xiàn)代化的蛻變。當(dāng)下，工業(yè)控制系統(tǒng)的變革仍在繼續(xù)，有以下三個(gè)主要發(fā)展方向：新型現(xiàn)場(chǎng)總線控制系統(tǒng)、基于PC的工業(yè)控制計(jì)算機(jī)以及管控一體化系統(tǒng)集成技術(shù)。
工業(yè)控制系統(tǒng)實(shí)現(xiàn)現(xiàn)代化蛻變 有三大主要變革方向
自動(dòng)化與工業(yè)控制系統(tǒng)通常被簡(jiǎn)稱為ICS，是一個(gè)用來描述工業(yè)設(shè)施與自動(dòng)化系統(tǒng)的專用詞匯。
在ISA-99/IEC62443標(biāo)準(zhǔn)中，工業(yè)控制系統(tǒng)指的是“一個(gè)包括人員、硬件以及軟件，能夠?qū)I(yè)過程的安全性、可靠性造成影響的集合”，通常具有以下四個(gè)功能：
1.測(cè)量——獲取傳感器數(shù)據(jù)并將其作為下一步處理的輸入或直接作為輸出；
2.比較——將獲取的傳感器數(shù)據(jù)與預(yù)先設(shè)定的數(shù)據(jù)進(jìn)行比較；
3.計(jì)算——計(jì)算歷史誤差、當(dāng)前誤差與后續(xù)誤差；
4.矯正——基于測(cè)量、比較及計(jì)算的結(jié)果對(duì)自動(dòng)化過程進(jìn)行調(diào)整。
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