描述

電源系統(tǒng)冗余。
電源是整個控制系統(tǒng)得以正常工作的動力源泉，一旦電源單元發(fā)生故障，往往會使整個控制系統(tǒng)的工作中斷，造成嚴重后果。要使控制系統(tǒng)能夠安全、可靠、長期、穩(wěn)定地運行，首先穩(wěn)定的供電必須得到保證。JX-300X型DCS采用可熱插拔的冗余電源，正常工作時，兩臺電源各輸出一半功率，從而使每一臺電源都工作在輕負載狀態(tài)，有利于電源穩(wěn)定工作。當其中一臺發(fā)生故障，短時由另一臺接替其工作，并報警。設計為可熱插拔的冗余電源，這樣系統(tǒng)維護時可以在不影響系統(tǒng)正常運行的情況下更換故障的電源。

網(wǎng)絡系統(tǒng)冗余。
采用冗余網(wǎng)卡和冗余網(wǎng)絡接口。正常工作時，冗余的兩條數(shù)據(jù)高速通路同時并行運行，自動分攤網(wǎng)絡流量，并考慮了負載均衡的冗余設計，使系統(tǒng)網(wǎng)絡通信帶寬提高。當其中一路故障（網(wǎng)卡損壞或出現(xiàn)線路故障）時，另一路自動地承擔全部通信負載，保證通信的正常進行。

冷卻系統(tǒng)冗余。
利用控制柜內(nèi)可自動切換的冗余風扇，對風扇和機柜內(nèi)溫度進行實時監(jiān)測，發(fā)現(xiàn)工作風扇故障或柜內(nèi)溫度過高時都會自動報警，并自動啟動備用風扇。

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