聯(lián)系人：蔣經(jīng)理
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NI SCXI-1520實(shí)現(xiàn)的軌跡跟隨
掉電順序
電源模塊檢測(cè)到外部交流供電中斷超過15毫秒時(shí)，系統(tǒng)掉電。
電源故障時(shí)的存儲(chǔ)器數(shù)據(jù)保持
因?yàn)閼?yīng)用程序RAM以電池為后備電源，下列數(shù)據(jù)在掉電/上電過程后會(huì)保存下來:
應(yīng)用程序
■故障表和其他自診斷數(shù)據(jù)
■程序和模塊檢測(cè)覆蓋數(shù)據(jù)%R寄存器%L寄存器和%P寄存器數(shù)據(jù):
■ 模擬量存儲(chǔ)器數(shù)據(jù)(%AI和%AQ)
■離散輸入(%I)的狀態(tài)
■保持 型離散輸出(%Q)的狀態(tài)
■保持型離散內(nèi)部變量(%M)的狀態(tài)
下列類型的數(shù)據(jù)在重新上電時(shí)不保存:
■離散臨時(shí)變量(%T)
■用在非保持型線圈-()- 上的%M和%Q變量
■系統(tǒng)內(nèi)部的離散位的狀態(tài)(系統(tǒng)位，故障位，保留位)
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