描述
用A-BControlLogix雙CPU的PLC控制器實現(xiàn)的熔鹽爐自動系統(tǒng),已于2001年底開始成功運行于中國鋁業(yè)河南分公司,運行情況良好,滿足了一水硬鋁管道化溶出氧化鋁生產(chǎn)線的工藝要求。
我們的體會是,ControlLogix雙CPU冗余控制的軟件方式實現(xiàn)是一種經(jīng)濟、有效的方法,它成本支出不大,卻能使系統(tǒng)的可靠性大大提高。
另外,雙CPU冗余控制時,如何利用Map命令,只將具有主控制權的CPU數(shù)據(jù)通過ControlNet網(wǎng)傳送給其他控制設備,是值得進一步研究的。
參考文獻:
[1]Allen-BradleyLogix5550ControllerUser’sGuide1756-6.5.12SEP1999
[2]Allen-BradleySoftwareOutputSwitchingPublication1756-AP001A-US-E-December1999
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應用于以下領域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計算機控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
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