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4S015-069 BOARD NK386SX-2

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產(chǎn)品型號4S015-069 BOARD NK38

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4S015-069 BOARD NK386SX-2

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4S015-069 BOARD NK386SX-2

4S015-069 BOARD NK386SX-2

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PLC 的程序是直接作用于對象的具體工藝過程,那么對對象具體工藝過程的理解是非常重要的的。我在與用戶的交流過程中,會(huì)用我所掌握的Unit Operation的知識(shí)分析用戶的工藝過程,協(xié)助用戶整理過程控制中的各個(gè)邏輯關(guān)系,甚至包括各種儀表、硬件的配置。這得益于我原本所學(xué)的專業(yè)。當(dāng)然, 不能要求所有搞PLC程序的工程師都有我這樣的經(jīng)歷。但是有兩門知識(shí)卻是*的:一是過程儀表的硬件知識(shí),包括傳感器、變送器(二次儀表)和PLC本 身,這是構(gòu)建控制系統(tǒng)的基礎(chǔ);二是過程控制理論,包括各種控制模型的原理和應(yīng)用,其中zui重要的是二位調(diào)節(jié)和PID調(diào)節(jié)模型。PID調(diào)節(jié)是目前用得zui廣泛的 過程控制手段,且變化多端。

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