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PLC可編程控制器

PLC控制氣缸的報警

發布日期:2022-04-26 點擊率:76

     在氣缸的應用中,一般情況一個氣缸都會配上2只磁性開關,用于檢測氣缸的到位,下面介紹一個檢測氣缸不到位或磁性開關損壞的報警程序。

 

    上圖是用三菱FX3U系列寫的一條程序,Y0控制氣缸,X0為氣缸原位檢測,X1為氣缸動位檢測。

    程序第一行為氣缸不動作時若XO無信號2秒后報警;

    第二行為氣缸動作時若X1無信號2秒后報警;

    第三行為兩個磁性開關都無信號2秒后報警;

    第四行為兩個磁性開關都有信號2秒后報警;

    ANS指令為三菱FX3U系列專用報警指令,S900-S999為信號報警專用寄存器,支持斷點保持。

    上述程序可以檢測氣缸動作慢、磁性開關損壞、氣缸卡住報警功能。
 

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