1747-L541模塊
維修經(jīng)驗(yàn)總結(jié)
一.帶程序的芯片
1.EPROM芯片一般不宜損壞.因這種芯片需要紫外光才能擦除掉程序,
故在測試中不會(huì)損壞程序.但有資料介紹:因制作芯片的材料所致,隨著
時(shí)間的推移(年頭長了),即便不用也有可能損壞(主要指程序).所以要
盡可能給以備份.
2.EEPROM,SPROM等以及帶電池的RAM芯片,均極易破壞程序.這類芯片
是否在使用<測試儀>進(jìn)行VI曲線掃描后,是否就破壞了程序,還未有定
論.盡管如此,同仁們在遇到這種情況時(shí),還是小心為妙.筆者曾經(jīng)做過
多次試驗(yàn),可能大的原因是:檢修工具(如測試儀,電烙鐵等)的外殼漏電
所致.
3.對于電路板上帶有電池的芯片不要輕易將其從板上拆下來.
二.復(fù)位電路
1.待修電路板上有大規(guī)模集成電路時(shí),應(yīng)注意復(fù)位問題.
2.在測試前裝回設(shè)備上,反復(fù)開,關(guān)機(jī)器試一試.以及多按幾次復(fù)
位鍵.
1747-L541模塊
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| 1747-SDN |
| 1747-SN |
1747-L541模塊
ABB宣布微軟已加入其“節(jié)能增效行動(dòng)”（#energyefficiencymovement）。節(jié)能增效行動(dòng)是ABB于2021年3月發(fā)起的一項(xiàng)面向各利益相關(guān)方的倡議，旨在提高節(jié)能減排意識并加大行動(dòng)力度，應(yīng)對氣候變化。ABB也邀請其他公司參加該計(jì)劃并做出公開承諾，以激勵(lì)更多企業(yè)采取行動(dòng)。微軟是目前參與該行動(dòng)的的企業(yè)合作伙伴之一。
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| R88M-GP40030H-BOS2-Z |
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我們是一家主要經(jīng)營各***的自動(dòng)化設(shè)備產(chǎn)品，有（DCS系統(tǒng)）和（機(jī)器人系統(tǒng)）以及（大型伺服控制系統(tǒng)）
的模塊備件，這些產(chǎn)品為分布式控制系統(tǒng)簡稱DCS 、可編程序控制器簡稱PLC、工業(yè)用模組 、
工業(yè)控制通訊轉(zhuǎn)換器簡稱Anybus 、遠(yuǎn)端輸出/輸入模塊簡稱RTU 、工業(yè)電腦、工業(yè)用低頻螢?zāi)缓喎QIPC、 、
人機(jī)界面SCSI(50、68、80Pin) AnyBus(Gateway)等一些自動(dòng)化設(shè)備備件。
我們主要是為經(jīng)銷商和外貿(mào)商以及終端客戶供貨。我們主要賣的產(chǎn)品名稱有處理器、觸摸屏、模塊、卡件、
電源、機(jī)架、變頻器、驅(qū)動(dòng)器、軟啟動(dòng)器、數(shù)據(jù)線、端子、電機(jī)、傳感器、控制面板、機(jī)器人、通訊卡、
工控機(jī)、軟件、接觸器、轉(zhuǎn)換器、斷路器、接近開關(guān)、編碼器、減速機(jī)等
