SO13849-1:機(ji)械安(an)(an)全(quan)(quan)(quan).控(kong)(kong)制系(xi)統(tong)(tong)(tong)的(de)(de)相關**分.第1部分:設(she)(she)計用一般原理（1）新(xin)(xin)(xin)版ISO13849-1標(biao)準即將在2011年(nian)底(di)正式(shi)生效(xiao)實(shi)施，這將是(shi)機(ji)械功能安(an)(an)全(quan)(quan)(quan)領域全(quan)(quan)(quan)新(xin)(xin)(xin)的(de)(de)里程碑。在以(yi)往要求(qiu)上，增(zeng)加(jia)(jia)了(le)(le)一些(xie)(xie)系(xi)統(tong)(tong)(tong)故障概率方面的(de)(de)評估(gu)(gu)，從而可以(yi)實(shi)現從零部件到系(xi)統(tong)(tong)(tong)進行(xing)性(xing)(xing)安(an)(an)全(quan)(quan)(quan)評估(gu)(gu)。同時(shi)(shi)該(gai)標(biao)準也為設(she)(she)多的(de)(de)，可以(yi)量(liang)化(hua)的(de)(de)設(she)(she)計實(shi)現方法，如增(zeng)加(jia)(jia)了(le)(le)系(xi)統(tong)(tong)(tong)安(an)(an)全(quan)(quan)(quan)等(deng)(deng)級(ji)(PLr)、系(xi)統(tong)(tong)(tong)平均(jun)無(wu)危險故障時(shi)(shi)間(MTTFd)、系(xi)統(tong)(tong)(tong)診斷(duan)檢測因故障預防(fang)(CCF)等(deng)(deng)參(can)數，從而有(you)效(xiao)的(de)(de)解決了(le)(le)原有(you)EN954-1標(biao)準無(wu)法實(shi)現定量(liang)化(hua)判斷(duan)系(xi)統(tong)(tong)(tong)安(an)(an)全(quan)(quan)(quan)性(xing)(xing)的(de)(de)問題(ti)。（2）新(xin)(xin)(xin)版ISO13849-1標(biao)準針對一些(xie)(xie)新(xin)(xin)(xin)型的(de)(de)控(kong)(kong)制方法，提(ti)供了(le)(le)更有(you)效(xiao)的(de)(de)安(an)(an)全(quan)(quan)(quan)評估(gu)(gu)解決方案(an)。可提(ti)升控(kong)(kong)制系(xi)統(tong)(tong)(tong)越來備的(de)(de)安(an)(an)全(quan)(quan)(quan)等(deng)(deng)級(ji)，保(bao)證(zheng)生產(chan)安(an)(an)全(quan)(quan)(quan)性(xing)(xing)和(he)(he)高效(xiao)率，并且結合新(xin)(xin)(xin)技術和(he)(he)設(she)(she)計經驗，幫(bang)助(zhu)企(qi)業(ye)在總(zong)體效(xiao)率、生產(chan)力和(he)(he)靈活性(xing)(xing)方證(zheng)連續性(xing)(xing)生產(chan)，減少(shao)意外停機(ji)時(shi)(shi)間，并降低開發、操作和(he)(he)維護(hu)成(cheng)本。盡(jin)快執行(xing)該(gai)項標(biao)準，可保(bao)證(zheng)機(ji)械制造商在激烈先機(ji)。巖騰自動(dong)化(hua)產(chan)品規格齊(qi)全(quan)(quan)(quan)、款式(shi)新(xin)(xin)(xin)穎。危化(hua)品企(qi)業(ye)SIL定級(ji)報告

SIL驗算是怎么一回(hui)(hui)事(shi)。簡而言之(zhi)，SIL驗算是對所完成的(de)(de)(de)安(an)全儀(yi)表功(gong)能(SIF)回(hui)(hui)路的(de)(de)(de)整體安(an)全能力(li)進行(xing)量化評估驗證(zheng)(zheng)是否達到(dao)要求能力(li)的(de)(de)(de)過(guo)程(cheng)(cheng)。在HAZOP分(fen)(fen)析中(zhong)，工(gong)藝工(gong)程(cheng)(cheng)師比儀(yi)表工(gong)程(cheng)(cheng)師擔任更重要的(de)(de)(de)角色(se)，是頭腦風(feng)暴(bao)的(de)(de)(de)主力(li)，需(xu)要辨識各種潛在的(de)(de)(de)風(feng)險提出解(jie)決的(de)(de)(de)方案，但一旦分(fen)(fen)析完成，SIL定(ding)級結束，進入到(dao)了SIL驗證(zheng)(zheng)階(jie)段，SIF回(hui)(hui)路已(yi)經基本定(ding)型(xing)，這時候則變為(wei)儀(yi)表工(gong)程(cheng)(cheng)師的(de)(de)(de)主場。SIF回(hui)(hui)路也由“檢測部(bu)(bu)分(fen)(fen)-控(kong)制(zhi)部(bu)(bu)分(fen)(fen)-執(zhi)行(xing)部(bu)(bu)分(fen)(fen)”組(zu)成。不過(guo)是系統從控(kong)制(zhi)回(hui)(hui)路的(de)(de)(de)DCS換(huan)為(wei)了帶有(you)(you)SIL認(ren)證(zheng)(zheng)的(de)(de)(de)安(an)全儀(yi)表系統SIS。熟(shu)悉控(kong)制(zhi)回(hui)(hui)路的(de)(de)(de)儀(yi)表工(gong)程(cheng)(cheng)師，很快會醒悟(wu)到(dao)SIF回(hui)(hui)路與(yu)控(kong)制(zhi)回(hui)(hui)路共同之(zhi)處，沒有(you)(you)誰比你們(men)更熟(shu)悉SIF回(hui)(hui)路中(zhong)個(ge)單元中(zhong)的(de)(de)(de)組(zu)件(jian)，更適合辨識各個(ge)單元組(zu)件(jian)的(de)(de)(de)SIL能力(li)。聊城SIL定(ding)級服務(wu)機構(gou)巖騰(teng)自動化產(chan)品各項技術指(zhi)標均(jun)達到(dao)標準。

基本工(gong)藝控制(zhi)系(xi)統(tong)（BPCS）：是指對(dui)來(lai)自工(gong)藝及(ji)其(qi)相(xiang)關(guan)設(she)備和可(ke)(ke)(ke)編程系(xi)統(tong)或(huo)操作員的(de)(de)輸(shu)入信號(hao)做出響(xiang)應，并對(dui)由此產生的(de)(de)輸(shu)出信號(hao)所(suo)引(yin)起的(de)(de)工(gong)藝和其(qi)相(xiang)關(guan)設(she)備以(yi)需要(yao)的(de)(de)方式(shi)動作的(de)(de)，但不(bu)執(zhi)行SIL1及(ji)以(yi)上安全儀表(biao)系(xi)統(tong)的(de)(de)控制(zhi)系(xi)統(tong)。SIL定(ding)(ding)級需具備哪些前提條(tiao)件(jian)，需準(zhun)備哪些資(zi)料(liao)？關(guan)鍵(jian)點解析？（1）SIL定(ding)(ding)級準(zhun)備資(zi)料(liao)：?HAZOP分(fen)析報告?風(feng)險(xian)可(ke)(ke)(ke)接受標準(zhun)?因(yin)(yin)果表(biao)?其(qi)他資(zi)料(liao)同HAZOP分(fen)析（2）關(guan)鍵(jian)點解析：?風(feng)險(xian)可(ke)(ke)(ke)接受標準(zhun)的(de)(de)制(zhi)定(ding)(ding)需要(yao)結(jie)合企業(ye)的(de)(de)現(xian)狀(zhuang)?HAZOP報告的(de)(de)質量(liang)為影響(xiang)SIL定(ding)(ding)級的(de)(de)關(guan)鍵(jian)因(yin)(yin)素?SIL定(ding)(ding)級中(zhong)初始事件(jian)及(ji)修正因(yin)(yin)子影響(xiang)結(jie)果的(de)(de)準(zhun)確度?SIL定(ding)(ding)級中(zhong)“IPL”三個特性(xing)的(de)(de)細節把握為重中(zhong)之重?在役裝置(zhi)中(zhong)現(xian)場(chang)調(diao)研及(ji)MOC變更(geng)梳理不(bu)可(ke)(ke)(ke)缺少。

我什么時候需要(yao)SIF或(huo)SIS？標(biao)準的(de)理念表明(ming)，只有在(zai)沒有其(qi)他非(fei)儀器化的(de)方式來充分(fen)消除或(huo)減輕(qing)過(guo)(guo)程(cheng)(cheng)風(feng)(feng)險(xian)時，才應實施SIS或(huo)SIF。具(ju)體而言(yan)（IEC61511Mod）推(tui)薦遵循(xun)安全(quan)(quan)生命周期(qi)的(de)多學科團隊(dui)方法(fa)，進行過(guo)(guo)程(cheng)(cheng)危(wei)害分(fen)析，設(she)計各(ge)種保護層以及當某個危(wei)險(xian)事(shi)件無法(fa)通(tong)過(guo)(guo)儀器以外的(de)其(qi)他方法(fa)防(fang)止(zhi)或(huo)減輕(qing)時，**終實施SIS。什么是驗(yan)證(zheng)測(ce)(ce)(ce)試(shi)間(jian)(jian)隔？校驗(yan)測(ce)(ce)(ce)試(shi)是安全(quan)(quan)儀表系(xi)(xi)統的(de)一項要(yao)求，可(ke)確保一切工(gong)作正常并(bing)按預期(qi)執行。測(ce)(ce)(ce)試(shi)必須包括整個系(xi)(xi)統，邏輯解算器素的(de)驗(yan)證(zheng)。間(jian)(jian)隔是測(ce)(ce)(ce)試(shi)發生的(de)時間(jian)(jian)。測(ce)(ce)(ce)試(shi)頻(pin)率因每個SIS而異，并(bing)取決于技術，系(xi)(xi)統架構和(he)(he)目(mu)標(biao)SIL級別。驗(yan)證(zheng)測(ce)(ce)(ce)試(shi)首頁(ye)新聞資訊熱點項目(mu)檢測(ce)(ce)(ce)領域聯(lian)系(xi)(xi)我們能力資質關鍵詞...2020/7/22SIL認證(zheng)答(da)疑-深圳中(zhong)諾(nuo)檢測(ce)(ce)(ce)技術有限公司(si)(si)-防(fang)爆認證(zheng)技術解決專(zhuan)家(jia)2/3需求計算概率的(de)重要(yao)組成(cheng)部分(fen)。什么是過(guo)(guo)程(cheng)(cheng)危(wei)害分(fen)析（PHA）？PHA是一項OSHA指令，用于識別過(guo)(guo)程(cheng)(cheng)中(zhong)的(de)安全(quan)(quan)問題和(he)(he)風(feng)(feng)險(xian)，制定(ding)糾正措(cuo)施以應對安全(quan)(quan)問題，并(bing)在(zai)安全(quan)(quan)系(xi)(xi)統出現故代緊(jin)急措(cuo)施。PHA必須由在(zai)分(fen)析過(guo)(guo)程(cheng)(cheng)中(zhong)具(ju)有特(te)定(ding)專(zhuan)業知(zhi)識的(de)多元(yuan)化團隊(dui)進行。許(xu)多咨詢和(he)(he)工(gong)程(cheng)(cheng)公司(si)(si)也提供(gong)PHA服務以包括假設(she)分(fen)析，危(wei)害和(he)(he)可(ke)操(cao)作性研究（HAZOP），失效(xiao)模式和(he)(he)影響分(fen)析（FEMA）以及故障樹(shu)分(fen)析。巖騰自動化希望在(zai)大家(jia)一起互利(li)共贏情況(kuang)下，共同發展。

整理(li)證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)當然是SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)，整理(li)證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)的主要目(mu)(mu)的是給驗(yan)算(suan)(suan)(suan)第(di)三(san)方提(ti)(ti)供失(shi)(shi)效數(shu)據，這(zhe)時候(hou)引發(fa)出來(lai)一個(ge)問題，驗(yan)算(suan)(suan)(suan)軟(ruan)件(jian)有自(zi)帶數(shu)據庫(ku)，為什(shen)么還(huan)需(xu)要收集失(shi)(shi)效數(shu)據？這(zhe)個(ge)疑問可以在計算(suan)(suan)(suan)那個(ge)階段會有詳細(xi)解(jie)釋。1、經(jing)驗(yan)條，找到對應儀表(biao)的SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)。SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)包含很多信息，SIL等(deng)級(ji)(ji)，可能(neng)的硬(ying)件(jian)要求(qiu)(HFT)，類(lei)型(A/B)，失(shi)(shi)效數(shu)據(Lamdaλ)等(deng)等(deng)。證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)，這(zhe)塊儀表(biao)安(an)全功(gong)能(neng)性能(neng)有了(le)證(zheng)(zheng)(zheng)(zheng)據。目(mu)(mu)前各種來(lai)源的SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)泛濫，真(zhen)(zhen)真(zhen)(zhen)假假之(zhi)中，數(shu)據信用(yong)(yong)度也(ye)令人(ren)頗為頭疼(建議大家看(kan)看(kan)儀表(biao)SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)真(zhen)(zhen)假判斷)，這(zhe)且另當別論。但(dan)有SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)，對驗(yan)算(suan)(suan)(suan)而言就是有米之(zhi)炊了(le)。查看(kan)SIL證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)時，務必要檢查是否有第(di)二頁(ye)或者是否包括失(shi)(shi)效數(shu)據，不熟悉(xi)的儀表(biao)工程師往往會落入以下陷阱(jing)：掛羊頭賣(mai)狗肉陷阱(jing)，被告(gao)知(zhi)所使用(yong)(yong)的儀表(biao)是帶證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)的，但(dan)證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)不是針對正在使用(yong)(yong)的型號，要擦亮眼(yan)睛(jing)哦；缺(que)斤短兩陷阱(jing)，證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)是那個(ge)對應的證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)，但(dan)用(yong)(yong)于驗(yan)算(suan)(suan)(suan)時候(hou)毫(hao)無幫助，因為證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)只有頁(ye)，雖然提(ti)(ti)供了(le)SIL等(deng)級(ji)(ji)的信息，但(dan)沒有提(ti)(ti)供相(xiang)應的失(shi)(shi)效數(shu)據。這(zhe)時候(hou)就需(xu)要儀表(biao)工程師發(fa)揮掘地三(san)尺精神，追問廠家索要失(shi)(shi)效數(shu)據，可能(neng)在證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)二頁(ye)，也(ye)可能(neng)在與證(zheng)(zheng)(zheng)(zheng)書(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)配套的報告(gao)中(回答沒有報告(gao)的廠家，恭喜，八成遇到的是個(ge)李鬼認證(zheng)(zheng)(zheng)(zheng)機構(gou))，也(ye)可能(neng)出現在安(an)全手冊里。巖騰(teng)自(zi)動(dong)化(hua)產(chan)品(pin)豐富多變，色(se)澤典雅(ya)，嚴格按照質量體系要求(qiu)生產(chan)而成。危(wei)化(hua)品(pin)企業SIL定級(ji)(ji)專業機構(gou)

巖騰自動化以人文綠色低碳環保為發展之道(dao)。危化品企(qi)業SIL定級報告(gao)

軟硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)SIL的(de)(de)(de)(de)評估①硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du)的(de)(de)(de)(de)要求硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du)指(zhi)部(bu)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)或子(zi)(zi)(zi)系(xi)統(tong)在(zai)出現一個(ge)(ge)(ge)或幾個(ge)(ge)(ge)硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)的(de)(de)(de)(de)情況(kuang)下，功(gong)(gong)(gong)能(neng)單元繼(ji)續執行所要求的(de)(de)(de)(de)儀(yi)表(biao)安(an)(an)(an)(an)全(quan)功(gong)(gong)(gong)能(neng)的(de)(de)(de)(de)能(neng)度(du)(du)(du)(du)N意味著N+1個(ge)(ge)(ge)故(gu)(gu)(gu)(gu)障(zhang)(zhang)會導(dao)致全(quan)功(gong)(gong)(gong)能(neng)的(de)(de)(de)(de)喪(sang)失。例如：硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du)為(wei)1，表(biao)示如有(you)兩臺設(she)備(bei)，它們的(de)(de)(de)(de)結(jie)構應(ying)使得兩個(ge)(ge)(ge)險失效(xiao)(xiao)不得阻止(zhi)安(an)(an)(an)(an)全(quan)動作發生。為(wei)了減輕儀(yi)表(biao)安(an)(an)(an)(an)全(quan)功(gong)(gong)(gong)能(neng)設(she)計中的(de)(de)(de)(de)潛在(zai)缺陷(xian)，IEC61511-1表(biao)5和(he)表(biao)6定(ding)義了傳感器(qi)(qi)、端元件(jian)(jian)(jian)(jian)(jian)(jian)(jian)比(bi)(bi)較低的(de)(de)(de)(de)硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)裕(yu)度(du)(du)(du)(du)。對(dui)儀(yi)表(biao)安(an)(an)(an)(an)全(quan)功(gong)(gong)(gong)能(neng)而言(yan)，傳感器(qi)(qi)、邏輯解算(suan)器(qi)(qi)和(he)**終元件(jian)(jian)(jian)(jian)(jian)(jian)(jian)應(ying)具有(you)比(bi)(bi)較低的(de)(de)(de)(de)硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du),硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)比(bi)(bi)較低的(de)(de)(de)(de)部(bu)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)或子(zi)(zi)(zi)系(xi)統(tong)冗(rong)余。②硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)安(an)(an)(an)(an)全(quan)完(wan)整(zheng)(zheng)性的(de)(de)(de)(de)結(jie)構約(yue)束硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)安(an)(an)(an)(an)全(quan)功(gong)(gong)(gong)能(neng)所聲明的(de)(de)(de)(de)比(bi)(bi)較高(gao)安(an)(an)(an)(an)全(quan)完(wan)整(zheng)(zheng)性等級受限(xian)于硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du)及(ji)執行該安(an)(an)(an)(an)全(quan)功(gong)(gong)(gong)能(neng)的(de)(de)(de)(de)子(zi)(zi)(zi)系(xi)統(tong)的(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)失效(xiao)(xiao)分數(shu)(SFF)。表(biao)2和(he)表(biao)3為(wei)A類(lei)和(he)B類(lei)相(xiang)關(guan)子(zi)(zi)(zi)系(xi)統(tong)的(de)(de)(de)(de)結(jie)構約(yue)束，表(biao)示在(zai)失效(xiao)(xiao)分數(shu)(SFF)確(que)定(ding)的(de)(de)(de)(de)情況(kuang)下，SIL與比(bi)(bi)較低硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du)之(zhi)間的(de)(de)(de)(de)在(zai)進行SIL評估時，我(wo)們首先要根據部(bu)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)或子(zi)(zi)(zi)系(xi)統(tong)的(de)(de)(de)(de)失效(xiao)(xiao)模式是(shi)(shi)否(fou)已知、數(shu)據是(shi)(shi)否(fou)可靠(kao)、故(gu)(gu)(gu)(gu)障(zhang)(zhang)行為(wei)是(shi)(shi)否(fou)確(que)定(ding)來(lai)區(qu)別硬(ying)(ying)屬(shu)于A類(lei)還是(shi)(shi)B類(lei)。然后，進行SFF及(ji)PFD計算(suan),對(dui)應(ying)。即部(bu)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)和(he)相(xiang)關(guan)子(zi)(zi)(zi)系(xi)統(tong)的(de)(de)(de)(de)安(an)(an)(an)(an)全(quan)完(wan)整(zheng)(zheng)性等確(que)定(ding)子(zi)(zi)(zi)系(xi)統(tong)比(bi)(bi)較大硬(ying)(ying)件(jian)(jian)(jian)(jian)(jian)(jian)(jian)安(an)(an)(an)(an)全(quan)完(wan)整(zheng)(zheng)性等級時,必須考(kao)慮系(xi)統(tong)結(jie)構約(yue)束,即在(zai)SFF確(que)定(ding)前提下,故(gu)(gu)(gu)(gu)障(zhang)(zhang)裕(yu)度(du)(du)(du)(du)要求與SIL的(de)(de)(de)(de)對(dui)應(ying)關(guan)系(xi)子(zi)(zi)(zi)系(xi)統(tong)的(de)(de)(de)(de)結(jie)構約(yue)束。危化品企業SIL定(ding)級報告(gao)

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