【1747-BSN熱備模塊】
一產(chǎn)品,一價(jià)格,一質(zhì)量換您一份放心與舒心
我們承諾三高一低:
高品質(zhì);高標(biāo)準(zhǔn);高信譽(yù);低價(jià)格
我們承諾三大保證:
質(zhì)量保證;原裝保證;價(jià)格保證
我們給與三:
優(yōu)資;原裝;低價(jià)
我們做足三*:
*原裝;*優(yōu)資;*低價(jià)!
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1747-BSN熱備模塊
優(yōu)先級(jí)是指多個(gè)中斷事件同時(shí)發(fā)出中斷請(qǐng)求時(shí),CPU對(duì)中斷事件響應(yīng)的優(yōu)先次序。S7-200規(guī)定的中斷優(yōu)先由高到低依次是:通信中斷、I/O中斷和定時(shí)中斷。每類中斷中不同的中斷事件又有不同的優(yōu)先權(quán),如表2所示。
一個(gè)程序中總共可有128個(gè)中斷。S7-200在各自的優(yōu)先級(jí)組內(nèi)按照先來(lái)先服務(wù)的原則為中斷提供服務(wù)。在任何時(shí)刻,只能執(zhí)行一個(gè)中斷程序。一旦一個(gè)中斷程序開(kāi)始執(zhí)行,則一直執(zhí)行至完成。不能被另一個(gè)中斷程序打斷,即使是更高優(yōu)先級(jí)的中斷程序。中斷程序執(zhí)行中,新的中斷請(qǐng)求按優(yōu)先級(jí)排隊(duì)等候。中斷隊(duì)列能保存的中斷個(gè)數(shù)有限,若超出,則會(huì)產(chǎn)生溢出。中斷隊(duì)列的zui多中斷個(gè)數(shù)和溢出標(biāo)志位如表3所示。表2中斷事件及優(yōu)先級(jí)
100-K09WD01M
100-K09WD10
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100-K09WF01
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100-K09WF10M
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100-K09WJ10
100-K09WJ10M
100-K09ZA01
100-K09ZA01M
100-K09ZA10
100-K09ZA10M
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100-K09ZA200M
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100-K09ZA400M
100-K09ZD01
100-K09ZD01M
100-K09ZD10
100-K09ZD10M
100-K09ZD200
100-K09ZD200M
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100-K09ZD300M
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100-K09ZD400M
100-K09ZJ01
100-K09ZJ01M
100-K09ZJ10
100-K09ZJ10M
100-K09ZJ200
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100-K09ZJ400M
100-K09ZQ01
100-K09ZQ01M
100-K09ZQ10
100-K09ZQ10M
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100-K09ZS01
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100-K12D01
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100-K12D10
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100-K12D200
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100-K12D300
100-K12D300M
100-K12D400
100-K12D400M
100-K12DJ01
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100-K12DJ10
100-K12DJ10M
100-K12DJ200
100-K12DJ200M
100-K12DJ300
100-K12DJ300M
100-K12DJ400
100-K12DJ400M
100-K12KA01
100-K12KA01M
100-K12KA10
100-K12KA10M
100-K12KA200
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100-K12KA300
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100-K12KA400
100-K12KA400M
100-K12KF01
100-K12KF01M
100-K12KF10
100-K12KF10M
100-K12KF200
100-K12KF200M
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100-K12KF400
100-K12KF400M
100-K12KG01
100-K12KG10
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100-K12KJ01
100-K12KJ01M
100-K12KJ10
100-K12KJ10M
100-K12KJ200
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100-K12KJ300
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100-K12KN01
100-K12KN01M
100-K12KN10
100-K12KN10M
100-K12KN200
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100-K12KN300
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100-K12VC01
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100-K12VC10
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100-K12VC200
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100-K12WD01
100-K12WD01M
100-K12WD10
100-K12WD10M
100-K12WF01
100-K12WF01M
100-K12WF10
100-K12WF10M
100-K12WJ01
100-K12WJ01M
100-K12WJ10
100-K12WJ10M
100-K12ZA01
100-K12ZA01M
100-K12ZA10
100-K12ZA10M
100-K12ZD01
100-K12ZD01M
100-K12ZD10
100-K12ZD10M
100-K12ZE01
100-K12ZG400
100-K12ZJ01
100-K12ZJ01M
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100-K12ZT10M