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chengjintang
天下事有難易乎？為之，則難者亦易矣！不為，則易者亦難矣！
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樓主  發(fā)表于: 2017-02-24 10:21
這邊一臺控制器，兩個(gè)驅動(dòng)器，一個(gè)觸摸屏�？刂破骱万寗�(dòng)器都是單獨供電，控制器485接到驅動(dòng)器1的485，然后再從驅動(dòng)器1的485并到驅動(dòng)器2的485，最后在從驅動(dòng)器2 的485并到觸摸屏的485。接法就是這個(gè)樣子，可是頻繁的兩個(gè)驅動(dòng)的485端口被燒，控制器和觸摸屏485 沒(méi)事！有沒(méi)有遇到過(guò)類(lèi)似的！
hmilydyk
自動(dòng)化設計改造是我的職業(yè)也是我的愛(ài)好
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1樓  發(fā)表于: 2017-02-24 11:54
實(shí)際加了看看效果，限流電阻又沒(méi)幾個(gè)錢(qián)，有些國產(chǎn)的東西保護沒(méi)做好，通訊口的保護

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