描述

增加一個(gè)新的FC1，同時(shí)增加2個(gè)IO接線柜C3和C4，4個(gè)現(xiàn)場(chǎng)總線接口單元NIU，28個(gè)輸入輸出IO板。新增的自動(dòng)控制功能全部在新的現(xiàn)場(chǎng)控制器中完成控制。

硬件的升級(jí)，使相當(dāng)于CPU的XPR卡自動(dòng)升級(jí)。它的升級(jí)使將使系統(tǒng)現(xiàn)場(chǎng)控制器FC的運(yùn)行時(shí)間大大縮短。TPA中XPR的CPU的運(yùn)行時(shí)間為0.16ms，新FC的運(yùn)行時(shí)間將達(dá)到0.08ms，單位時(shí)間可運(yùn)行的blocks數(shù)量也大大增加，大大改善了控制效果。

同時(shí)TPA系統(tǒng)通過網(wǎng)絡(luò)上新的現(xiàn)場(chǎng)控制器FC，進(jìn)一步利用Profibus現(xiàn)場(chǎng)總線實(shí)現(xiàn)與傳動(dòng)系統(tǒng)的通訊。舊系統(tǒng)傳動(dòng)系統(tǒng)的連鎖信號(hào)（如上漿泵速度及卷取速度）是通過硬線接入到相應(yīng)的接口卡的，但每接入一個(gè)傳動(dòng)系統(tǒng)的信號(hào)都需要重新敷設(shè)電纜，而系統(tǒng)升級(jí)后，一條Profibus線便能提供所需的任何傳動(dòng)信號(hào)。網(wǎng)絡(luò)系統(tǒng)的改進(jìn)將會(huì)使系統(tǒng)繼續(xù)得以擴(kuò)展，如進(jìn)一步可接入PA智能現(xiàn)場(chǎng)儀表及新型智能編碼器通訊信號(hào)等。

硬件的升級(jí)會(huì)使控制系統(tǒng)的擴(kuò)展更加靈活，不必采用較為昂貴的、專門的Honeywell的IO板件。如本次改造中IO模塊中采用了GE公司的VersaMax IO板。特別是控制施劑機(jī)電磁閥的控制信號(hào)類型是-10V–+10V，舊的TPA系統(tǒng)要想實(shí)現(xiàn)控制必需在原有板件后增加轉(zhuǎn)換器才能將-10V–+10V信號(hào)送出到電磁閥；但系統(tǒng)升級(jí)后，這種特殊的-10V–+10V信號(hào)可直接通過GE公司的VersaMax的IO板輸出到電磁閥上，實(shí)現(xiàn)控制，方便簡(jiǎn)捷。

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主營(yíng)：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

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