他們認為，未來嵌入式技術(shù)將會被廣泛應用于PAC，成為自動化系統(tǒng)的重要技術(shù)之一。
在用戶和系統(tǒng)集成商之間，對于PAC的質(zhì)疑同樣存在：PAC相對于PLC來說價格高、可靠性低、可拓展能力差，還有人認為，PAC并沒有真正針對某種迫切的或者潛在的市場需求，因此不免曲高和寡。
有部分反對者則認為，PAC技術(shù)發(fā)展趨向，如統(tǒng)一的多專業(yè)開發(fā)平臺、通信技術(shù)等也會對PLC的技術(shù)發(fā)展施加有益的影響。
值得一提的是，除了上述提到的PLC、PC-Based和PAC之外，針對行業(yè)應用，機器人專用控制器成為國內(nèi)多數(shù)廠商布局的重點，特別是像埃斯頓、華中數(shù)控、配天機器人等這樣以機器人本體研發(fā)為主的企業(yè)。
目前，隨著大規(guī)模和超大規(guī)模集成電路等微電子技術(shù)的發(fā)展，PLC已由初一位機發(fā)展到現(xiàn)在的以16位和32位微處理器構(gòu)成的微機化PC，而且實現(xiàn)了多處理器的多通道處理。如今，PLC技術(shù)已非常成熟，不僅控制功能增強，功耗和體積減小，成本下降，可靠性提高，編程和故障檢測更為靈活方便，而且隨著遠程I/O和通信網(wǎng)絡、數(shù)據(jù)處理以及圖象顯示的發(fā)展，使PLC向用于連續(xù)生產(chǎn)過程控制的方向發(fā)展，成為實現(xiàn)工業(yè)生產(chǎn)自動化的一大支柱。如今在各個行業(yè)的智能制造時代，PLC技術(shù)的發(fā)展呈現(xiàn)出產(chǎn)品規(guī)模兩極發(fā)展、通信網(wǎng)絡化、模塊化與智能化、編程語言/工具的多樣化和標準化等新的特點，并與新興技術(shù)結(jié)合，將進一步賦能數(shù)字化企業(yè)和智能工廠。
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