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sug
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樓主  發(fā)表于: 2014-09-21 18:14
觸摸屏上設定的定時(shí)數據，在斷電后，再重新通電，有時(shí)會(huì )有數據，有時(shí)又無(wú)數據，當重新設定數據時(shí)，顯示通訊出現錯誤，是什么問(wèn)題？PLC是FX1s用的是非易失性存儲器EEPROM,斷電后數據不會(huì )丟失
[ 此帖被sug在2014-09-22 21:52重新編輯 ]
gc007008
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1樓  發(fā)表于: 2014-09-22 17:32
手頭有沒(méi)有多的PLC或者觸摸屏，用替換法先排除硬件故障；我曾經(jīng)遇到過(guò)，一個(gè)24V的電源不合格，燒毀了，讓我的FX1S-20MR和一個(gè)信捷的文本，通信口同時(shí)燒壞的情況，出現類(lèi)似樓主說(shuō)的故障現象，先是無(wú)法通信，換PLC，能通信，不報警，但是文本上的寄存器數值不會(huì )變化，總是0，又換文本，才通信正常

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