手機(jī)號(hào)
未認(rèn)證執(zhí)照
楊麗君(女士)
普通會(huì)員
楊麗君 (女士)
ab 1756-cnb
有極強(qiáng)的自檢及保護(hù)功能。
①故障檢測(cè)——軟件定期地檢測(cè)外界環(huán)境，如掉電、欠電壓、鋰電池電壓過(guò)低及強(qiáng)干擾信號(hào)等。以便及時(shí)進(jìn)行處理。
②信息保護(hù)與恢復(fù)——當(dāng)偶發(fā)性故障條件出現(xiàn)時(shí)，不破壞plc內(nèi)部的信息。一旦故障條件消失，就可恢復(fù)正常，繼續(xù)原來(lái)的程序工作。所以，plc在檢測(cè)到故障條件時(shí)，立即把現(xiàn)狀態(tài)存入存儲(chǔ)器，軟件配合對(duì)存儲(chǔ)器進(jìn)行封閉，禁止對(duì)存儲(chǔ)器的任何操作，以防存儲(chǔ)信息被沖掉。
③設(shè)置警戒時(shí)鐘wdt（看門狗）——如果程序每循環(huán)執(zhí)行時(shí)間超過(guò)了wdt規(guī)定的時(shí)間，預(yù)示了程序進(jìn)入死循環(huán)，立即報(bào)警。
④加強(qiáng)對(duì)程序的檢查和校驗(yàn)——一旦程序有錯(cuò)，立即報(bào)警，并停止執(zhí)行。
⑤對(duì)程序及動(dòng)態(tài)數(shù)據(jù)進(jìn)行電池后備——停電后，利用后備電池供電，有關(guān)狀態(tài)及信息就不會(huì)丟失。
plc的出廠試驗(yàn)項(xiàng)目中，有一項(xiàng)就是抗干擾試驗(yàn)。它要求能承受幅值為1000v，上升時(shí)間1ns，脈沖寬度為1μs的干擾脈沖。一般，平均故障間隔時(shí)間可達(dá)幾十萬(wàn)～上千萬(wàn)小時(shí)；制成系統(tǒng)亦可達(dá)4～5萬(wàn)小時(shí)甚至更長(zhǎng)時(shí)間。
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廈門莫格電氣自動(dòng)化有限公司
聯(lián)系人：楊麗君（銷售工程師）
手 機(jī)：18050036945/0592-6808374
q q：3443643092
郵 箱：3443643092@
傳 真：0596-6514751（請(qǐng)備注楊工收）
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| 聯(lián)系人 | 需求數(shù)量 | 時(shí)間 | 描述 |
|---|---|---|---|
| 暫無(wú)產(chǎn)品詢價(jià)記錄 | |||
| 采購(gòu)商 | 成交單價(jià)（元） | 數(shù)量 | 成交時(shí)間 |
|---|---|---|---|
| 暫無(wú)購(gòu)買記錄 | |||
地區(qū)：汕頭
主營(yíng)產(chǎn)品：物流公司,貨運(yùn)站,國(guó)內(nèi)陸運(yùn)地區(qū)：成都
主營(yíng)產(chǎn)品：聲屏障,護(hù)欄網(wǎng),石籠網(wǎng)地區(qū)：三明
主營(yíng)產(chǎn)品：木荷苗,楓香苗,油茶苗地區(qū)：廊坊
主營(yíng)產(chǎn)品：富卓液壓,施羅德液壓,海普洛液壓
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