Digitec D3240H-25015
系統(tǒng)監(jiān)控 系統(tǒng)發(fā)生報(bào)警時(shí)工控機(jī)發(fā)出報(bào)警聲,點(diǎn)擊操作畫面上的報(bào)進(jìn)入報(bào)警畫面可看到具體報(bào)警內(nèi)容。并且所有發(fā)生的報(bào)警均有48小時(shí)的歷史記錄。InTouch可以為每個(gè)數(shù)據(jù)定義它的報(bào)警信息,模擬量還可定義高、低、高高、低低報(bào)警值,并且可以通過(guò)條件腳本或、數(shù)據(jù)值改變腳本和用戶編制的快速腳本處理各種報(bào)警信息,如彈出報(bào)警窗口或聲音提示。例如,要監(jiān)控陰床硅量過(guò)高的情況,就可以定義一個(gè)motor1.HiStatus的條件腳本,并在On True腳本框中寫上:
系統(tǒng)安全 系統(tǒng)安全問(wèn)題是每一個(gè)操作站軟件設(shè)計(jì)人員必須考慮的,Windows NT操作系統(tǒng)本身穩(wěn)定可靠,具有很高的安全性,InTouch可以通過(guò)帳號(hào)管理機(jī)制,限制不同人員的訪問(wèn)權(quán)限,來(lái)實(shí)現(xiàn)系統(tǒng)安全。 在本系統(tǒng)中,我們共設(shè)置了三個(gè)級(jí)別的訪問(wèn)權(quán)限,分為工程師級(jí)、儀表工級(jí)、操作工級(jí)。工程師級(jí)的權(quán)限高,可以修改系統(tǒng)參數(shù),畫面組態(tài);退出InTouch;實(shí)時(shí)監(jiān)控。儀表工級(jí)可以修改參數(shù);實(shí)時(shí)監(jiān)控。操作工級(jí)的權(quán)限低,只能實(shí)時(shí)監(jiān)控。登錄之后的操作員擁有自己的訪問(wèn)級(jí)別($AccessLevel),決定了他對(duì)操作站軟件的操作權(quán)限。比如,某些重要參數(shù)(如PID參數(shù))的修改只能讓儀表工級(jí)以上級(jí)別的人($AccessLevel>6000)操作,則可在按鈕動(dòng)畫鏈接的Miscellaneous\Disable(on)屬性的條件表達(dá)式中寫上$AccessLevel<6000。這樣,沒(méi)有登錄或訪問(wèn)級(jí)別不夠的人就無(wú)法觸發(fā)此按鈕了。
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