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我好像是
大波就是我
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樓主  發(fā)表于: 2017-08-30 11:07
圖片:
FX3u-4AD模擬量輸入模塊,我是直接讀取模塊數據,然后在觸摸屏顯示
模塊有電壓輸入的時(shí)候觸摸屏顯示正常,沒(méi)有波動(dòng)。模塊沒(méi)有電壓輸入的時(shí)候,觸摸屏顯示就上下波動(dòng)。接地也正確哎,也是屏蔽線(xiàn)。
經(jīng)過(guò)測試,我發(fā)現模擬量輸入模塊,隨便拿一根接上端子,只要沒(méi)有電壓輸入。顯示就波動(dòng)。有電壓輸入就正常。
模塊哪個(gè)參數要設置嗎?
難道要并聯(lián)一個(gè)電容嗎?
沒(méi)有電壓輸入的意思是端口還是接有線(xiàn),只是沒(méi)有電壓輸入
最大電壓才10v。觸摸屏最大也只會(huì )顯示10,F在他沒(méi)有電壓輸入的時(shí)候上下幾百
[ 此帖被我好像是在2017-08-30 11:31重新編輯 ]
hcl1230
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1樓  發(fā)表于: 2017-08-30 15:12
監控一下數字量變化情況   也有可能是觸摸屏數據類(lèi)型設置的問(wèn)題  

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