IC693MDL330
IC693MDL330IC693MDL330
隨著電廠自動化水平的進(jìn)一步提高,DCS系統(tǒng)在整個生產(chǎn)過程系統(tǒng)中越來越發(fā)揮關(guān)鍵作用,因此對其穩(wěn)定性和可靠性的要求越來越高,現(xiàn)在對整個DCS系統(tǒng)的可靠性已經(jīng)要求達(dá)到99.9%以上,而通訊系統(tǒng)作為DCS系統(tǒng)的關(guān)鍵子系統(tǒng),其可靠性和實時性直接影響整個DCS系統(tǒng)。因此,為了有效提高DCS通訊系統(tǒng)的可靠性,DCS廠商常常采用了以下措施:
1)冗余配置。現(xiàn)在所有電廠DCS系統(tǒng)骨干通訊網(wǎng)絡(luò)一般都采取了冗余配置,有些還實現(xiàn)了多重冗余,這樣通訊網(wǎng)絡(luò)可以保持高可用性。
2)使用光纖作為傳輸媒介。眾所周知,光纖不僅具有傳輸距離遠(yuǎn)、通訊帶寬大和耐腐蝕等顯著優(yōu)點,而且還具有抗電磁干擾能力強和傳輸誤碼率低等突出優(yōu)勢,而這些是銅纜和雙絞線等常規(guī)傳輸媒介所無法比擬的,因此近年來在通訊系統(tǒng)、自動化系統(tǒng)的骨干通訊網(wǎng)絡(luò)中逐漸得到了廣泛使用??梢灶A(yù)言,隨著光纖產(chǎn)品價格的進(jìn)一步下降和DCS系統(tǒng)物理分散發(fā)展需要,光纖的使用將繼續(xù)擴(kuò)大。~~~~~~~~~~~~~~~~~~~~~~~~~~~~
公司 名稱:廈門泰尼電氣有限公司
固定 電話:0592-6809819
聯(lián) 系 人:張亮
傳 真:0592-6890859【請備注“張亮”收】
商 務(wù) Q Q: 2314094943
手 機(jī):18030028083
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公司地址:廈門市海滄區(qū)海滄街道濱湖一里7號2008室
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3)網(wǎng)絡(luò)的解藕配置。該措施不僅有效隔離了各層數(shù)據(jù)流量,提高通訊實時性,而且也隔離通訊故障,將故障的影響盡可能地限制在最小范圍內(nèi),從而提高整個通訊系統(tǒng)的可靠性。Superior SLO-SYN 3180-PTO Oscillator Motor Drive 115V
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