1756-IF16/A
1756-IF16/A
1756-IF16/A
《聯(lián)系人；歐先生》
加熱系統(tǒng)為380AV供電，將380伏轉(zhuǎn)換為低壓后再給加熱器供電，功率和電壓由功率柜中的可控硅或磁調(diào)變壓器控制。可控硅或磁調(diào)變壓器又由溫控表控制，溫控表根據(jù)從熱電偶采集到的溫度和設(shè)定溫度對比，利用設(shè)定好的PID來決定輸出的功率，從而達(dá)到溫控的目的。
2 天星組態(tài)軟件在該項(xiàng)目中所起的作用
如上圖所示是一個完整的控制圖，其中PLC 為控制單元，所有信號的采集，IO的控制都由PLC主持完成。由于該系統(tǒng)要完成非常復(fù)雜的工藝，所以工藝曲線由上位機(jī)設(shè)置。工藝控制中的各中參數(shù)和IO點(diǎn)都可以顯示在計(jì)算機(jī)上，并且我們對溫度、壓力、閥門狀態(tài)做歷史記錄，以便分析工藝結(jié)果和設(shè)備故障原因。
《座機(jī)：0592-5709825》
《傳真：0592-5917519》
《24小時熱線：18030229053微信同步》
《QQ ：2479261344》
《QQ郵箱：2479261344@qq.com》
現(xiàn)場控制：
所有的現(xiàn)場控制由PLC完成，也就是說該系統(tǒng)的核心控制是PLC。
PCL主模塊：FX2N，負(fù)責(zé)和儀表通訊，工藝控制，IO點(diǎn)輸出。
PCL特殊模塊：FX2N-8AD，模擬量采集(壓力變送、質(zhì)量流量計(jì))。FX2N-8DA(質(zhì)量流量計(jì)控制)
PCL通訊板：FX2N-458DB，PLC和溫控儀表、真空計(jì)通訊用。
監(jiān)控系統(tǒng)：IPC、世紀(jì)星組態(tài)軟件。
圖2
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