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青年加油
好好學(xué)習，努力掙錢(qián)
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樓主  發(fā)表于: 2022-03-03 17:21
現有臺抽真空負壓的設備，有三臺真空泵，有三個(gè)點(diǎn)來(lái)檢測負壓值是否達到設定值，查了一些資料，需要安裝壓力變送器，那壓力變送器是怎么跟plc連接合適呢？
模擬量？
485？
哪種連接方式好呢？，哪個(gè)品牌的壓力傳感器穩定些，第一次用，請大佬們給個(gè)指引
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  • 下載積分:+1(756287415) 感謝分享！
    zhangqi_1234
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    1樓  發(fā)表于: 2022-03-04 22:35
    只圖省事，完全不考慮抗干擾、后期的維護維修問(wèn)題。這么說(shuō)吧，采用現場(chǎng)總線(xiàn)技術(shù)早已被證實(shí)是大趨勢，數字技術(shù)抗干擾能力優(yōu)于模擬技術(shù)，用通訊(現場(chǎng)總線(xiàn))技術(shù)有利于降低硬件線(xiàn)路復雜程度，有利于降低線(xiàn)路故障。當然，硬件線(xiàn)路變得簡(jiǎn)單了，軟件必然變得復雜。順便說(shuō)說(shuō)，你那個(gè)頭像很有喜慶感

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