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樓主  發(fā)表于: 2017-05-28 10:22
最近兩年用了近200個(gè)，維修的估計有不下10%，各種毛病，甚至新的PLC一上電就兩個(gè)相鄰的輸出點(diǎn)短路，直接把現場(chǎng)的幾個(gè)人驚得嘴巴合不攏，繼電器擴展模塊動(dòng)作幾萬(wàn)次鐵定損壞，難道是代理商給的山寨貨？
lvpretend
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1樓  發(fā)表于: 2017-05-29 07:45
看來(lái)商業(yè)競爭已經(jīng)讓許多廠(chǎng)商供應的主流PLC在最關(guān)鍵的可靠性上對成本做出了妥協(xié)。

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