IC693MDL634
IC693MDL634IC693MDL634
(1)在選擇DCS控制系統(tǒng)時要優(yōu)先考慮有在類似機組上良好運行業(yè)績的控制系統(tǒng),這樣的控制系統(tǒng)通過了工廠試驗和實際投運,其可靠性得到了時間的檢驗。
(2)控制系統(tǒng)的硬件一定要具有高可靠性,在電子元器件上的生產(chǎn)工藝各環(huán)節(jié)上采用了成熟技術,電子模件最好能熱拔插。控制器的運算和存儲能力要足夠,IO卡件具有很強的抗干擾能力。
(3)控制系統(tǒng)從結構上要充分地采用冗余技術。對于控制系統(tǒng)的控制器、網(wǎng)絡通訊等必須冗余,且各冗余設備之間必須能實現(xiàn)無擾切換。采用冗余結構不僅能避免控制系統(tǒng)的局部故障擴大事故,保證機組安全穩(wěn)定運行,同時也保證設備故障的在線排除,從而消除事故隱患。
【公 司】: 廈門泰尼電氣有限公司
【主 營】: AB、GE、施耐德等各類PLC產(chǎn)品
【價 格】: 電議
【發(fā)布人】: 張亮
【電 話】: 18030028083
【所在地】: 福建 - 廈門
【座 機】: 0592-6809819
【來 源】: 供應信息 > 電工、電氣 > PLC
【Q Q】: 2314094943
(4)控制系統(tǒng)軟件的可維護性要好。尤其是以下幾個方面:程序及軟件的穩(wěn)定性好,不會出現(xiàn)系統(tǒng)或單個控制器死機等問題;系統(tǒng)自診斷性好,控制器及I/O信號有出錯報警;人機交換友好,可以在線修改程序及下裝;備品備件有可靠保證,在15年內(nèi)采購容易且周期短,價格低;控制系統(tǒng)軟件的可讀性好,其組態(tài)功能塊的功能是否能輕易實現(xiàn)DCS控制系統(tǒng)的各種工藝功能的需要。
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