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shfxfa
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樓主  發(fā)表于: 2013-04-26 21:07
如題，有經(jīng)驗的師傅請進(jìn)來(lái)指點(diǎn)一二，單位里的一臺設備原來(lái)觸摸屏放在設備旁，現在想把觸摸屏放到設備監控室，以方便夜班員工操作，可不知道觸摸屏和PLC的通信線(xiàn)做多能有幾米，望有這方面經(jīng)驗師傅分享下，感謝�。�！
tkggtdkjpl
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1樓  發(fā)表于: 2013-04-27 08:06
232 理論最長(cháng)15米
422/485理論最長(cháng) 1200米
RJ45網(wǎng)線(xiàn)理論最長(cháng)100米
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