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l83438797
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樓主  發(fā)表于: 2021-07-24 13:43
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配置:PLC*1_FX5U
           臺達變頻器*2_VFD7A5MS21ANSAA
           通訊方式_RS485 RTU
           協(xié)議_三菱自帶通訊協(xié)議
要求能連續(實(shí)時(shí))讀取兩臺當前狀態(tài)和頻率變更的即時(shí)錄入,啟停手自動(dòng)分別觸發(fā)。
1、程序中用的指令SP.CPRCTL我以為是脈沖觸發(fā),改成S.CPRCTL后條件成立是不是可以一直讀取,寫(xiě)入?
2、讀取寫(xiě)入同時(shí)觸發(fā)會(huì )莫停,不會(huì )發(fā)送和接收,甚至我把1秒脈沖對的的讀寫(xiě)改成200ms測試時(shí),頻率從0-50的變更就會(huì )莫?ㄖ,不再讀取和寫(xiě)入了
3、指令執行結果很難采集到,按理一個(gè)掃描時(shí)間在指令執行下一行應該可以采集到信號,并以此做加計數觀(guān)察,可是并咩有觀(guān)察到計數。
綜合以上是否能夠同時(shí)連續(實(shí)時(shí))讀寫(xiě)兩站的資料信息?
jiangzl725
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1樓  發(fā)表于: 2021-07-24 20:11
    

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