STANL 412/826679-0002
STANL 412/826679-0002
系統(tǒng)組成 計(jì)算機(jī)與PLC集成控制系統(tǒng)由生產(chǎn)系統(tǒng)和非生產(chǎn)系統(tǒng)二部分組成（如圖1）。生產(chǎn)系統(tǒng)主要由微型機(jī)、適配器、PLC、執(zhí)行機(jī)構(gòu)及現(xiàn)場(chǎng)儀表等部分組成。非生產(chǎn)系統(tǒng)主要由工藝流程模擬顯示屏、電視監(jiān)視設(shè)備、現(xiàn)場(chǎng)通話設(shè)備、質(zhì)量檢查系統(tǒng)、管理信息系統(tǒng)等部分組成。中央控制室負(fù)責(zé)處理來自生產(chǎn)系統(tǒng)和非生產(chǎn)系統(tǒng)的大量信息。通過計(jì)算機(jī)與PLC集成控制系統(tǒng)，將潤(rùn)滑油廠的各生產(chǎn)車間、附屬部門以及總廠廠部聯(lián)成了密不可分的整體，從而最大限度地利用了信息資源。
系統(tǒng)功能 為滿足用戶提出的技術(shù)要求和現(xiàn)場(chǎng)的工況，此控制系統(tǒng)的設(shè)計(jì)具有以下功能： 1.根據(jù)用戶提出的技術(shù)要求，按照添加劑配方的比例精確地配制生產(chǎn)各種型號(hào)的石化產(chǎn)品，并且通過微型機(jī)和現(xiàn)場(chǎng)PLC控制系統(tǒng)實(shí)現(xiàn)整個(gè)生產(chǎn)過程的自動(dòng)化。 2.通過自行開發(fā)的計(jì)算機(jī)軟件，實(shí)現(xiàn)生產(chǎn)現(xiàn)場(chǎng)的動(dòng)態(tài)監(jiān)控。良好的人機(jī)界面、清晰的組態(tài)圖形，使得操作人員通過計(jì)算機(jī)屏幕，對(duì)于現(xiàn)場(chǎng)的各種工況變化一目了然。 3.在現(xiàn)場(chǎng)生產(chǎn)中，為提高整個(gè)控制系統(tǒng)的精確性，在攪拌器、電動(dòng)機(jī)、電動(dòng)閥、電磁閥等設(shè)備上均設(shè)計(jì)了局部反饋功能，這些相互獨(dú)立系統(tǒng)的局部反饋功能構(gòu)成了對(duì)總系統(tǒng)反饋控制的有力支持。
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