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laihuaxun200
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樓主  發(fā)表于: 2021-04-28 21:50
如題：現有的設備是幾年前做的設備，用到2個(gè)PLC，一個(gè)是FX3U 另一個(gè)是FX3SA 用一個(gè)威綸的觸摸 屏，做的是一屏多機通訊，PLC之間信號交換是通的IO點(diǎn)進(jìn)行信號交換的，用久了之后，現在出現兩個(gè)PLC有時(shí)候會(huì )不同步的情況�，F在想增加2個(gè)PLC之間進(jìn)行N:N 通訊或其它通訊方式，請問(wèn)要怎么增加通訊模塊呢？
觸摸屏有2個(gè)端口一個(gè)是485端口，一個(gè)是232端口，485端口己經(jīng)用來(lái)一屏多機通訊了
怎么用低成本的方式進(jìn)行改造？各位大神給出出主意吧��！謝謝啦！
日海電腦
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1樓  發(fā)表于: 2021-04-29 10:59
做通訊，不可能真同步，要用中斷觸發(fā)數據交換。

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