5136-PFB-1045136-PFB-104
PLC控制器是系統控制的中心，采集系統的全部工況信號，實時控制相關的設備動作；同時監(jiān)視生產過程參數和設備運行狀態(tài)，當危險工況出現時，及時發(fā)出聲光報警，當極限工況出現時，聯鎖保護設備，保障生產過程安全。為此，我們選擇了以產品可靠性高著稱的羅克韋爾自動化公司的新一代控制平臺：A-B ControlLogix系列，同時考慮采用雙CPU模塊冗余，進一步提高系統可靠性，避免因故障出現所引起的生產停頓或安全事故。
鄭娟萍
廈門仲鑫航自動化設備有限公司
塊CPU同時在線運行，一塊處于主控制模式，另一塊處于熱備模式。擁有主控制權的CPU具有輸出控制權，而熱備CPU同時采集數據和保持通訊連接，但輸出被禁止。
兩個CPU模塊互相監(jiān)視對方的運行狀態(tài)和通訊情況，一旦發(fā)現對方故障，立即發(fā)出報警，通過ControlNet網，傳送給上位工控機，在操作管理臺上顯示報警。如果是主控CPU模塊故障，熱備CPU模塊自動獲得主控制權。
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6Y080M0 6Y080M042725A 80 GB 0Y3392 22OCT2004 SATA Z363
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