可編程邏輯控制器PLC具備靈活性、可靠性和經(jīng)濟(jì)性等優(yōu)勢(shì),廣泛應(yīng)用于各種工業(yè)場(chǎng)景。其中所涉及的控制程序是實(shí)現(xiàn)自動(dòng)化生產(chǎn)的關(guān)鍵所在,直接決定了控制系統(tǒng)的性能和效果。對(duì)此,物通博聯(lián)提供接入PLC數(shù)據(jù)采集遠(yuǎn)程監(jiān)控的解決方案,實(shí)現(xiàn)生產(chǎn)過程的可視化監(jiān)控與精準(zhǔn)控制,有助于提高生產(chǎn)效率與管理水平。
在接入到開關(guān)、閥門、水泵等設(shè)備時(shí),PLC通常會(huì)被設(shè)置ON/OFF控制程序,來實(shí)現(xiàn)自動(dòng)化控制。當(dāng)系統(tǒng)達(dá)到設(shè)定值時(shí),PLC會(huì)發(fā)出OFF命令,將設(shè)備關(guān)閉;當(dāng)系統(tǒng)超過設(shè)定值時(shí),PLC會(huì)發(fā)出ON命令,將設(shè)備打開。比如一條飲料生產(chǎn)流水線中,PLC可以通過ON/OFF控制算法來控制水泵的開關(guān),當(dāng)水罐滿時(shí),PLC會(huì)發(fā)出OFF命令,將水泵關(guān)閉;當(dāng)水罐空時(shí),PLC會(huì)發(fā)出ON命令,將水泵打開。
通過將PLC接入物通博聯(lián)工業(yè)智能網(wǎng)關(guān)中,進(jìn)行協(xié)議解析和數(shù)據(jù)采集,并將數(shù)據(jù)傳輸?shù)皆破脚_(tái)或上位機(jī)中,即可遠(yuǎn)程監(jiān)控水泵、閥門等開關(guān)狀態(tài);如果PLC前端還有接入傳感器,也能一起采集水位、流量等數(shù)據(jù)集中起來,從而為監(jiān)控管理生產(chǎn)活動(dòng)提供可靠幫助。
用戶設(shè)定告警閾值與通知方式,就能在監(jiān)測(cè)到異常數(shù)據(jù)時(shí)自動(dòng)告警,通過微信、短信、郵件等方式進(jìn)行通知,從而方便用戶快速定位診斷采取措施,避免影響到現(xiàn)場(chǎng)的生產(chǎn)秩序。此外,通過網(wǎng)關(guān)也能下發(fā)指令到PLC實(shí)現(xiàn)遠(yuǎn)程控制,更能實(shí)現(xiàn)PLC的遠(yuǎn)程編程調(diào)試和遠(yuǎn)程上下載程序等操作,從而有效提高工作靈活性,縮減運(yùn)維成本。
審核編輯 黃宇
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