140 CRA 932 00
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西门子 300 plc 通过 MPI 通讯卡与组态王进行通讯时,能否实现双设备冗余的功能?
可以实现。
)一个 cp5611 卡可以连接两台 s7300plc(使用西门子厂家提供的可编程插头来实现);
2)在组态王软件中建立两个 s7300plc,设备地址分别设备为 7.2 和 8.2(设备地址根据实际设备来设置),小数点前面的号指 plc 的地址,后面是 cpu 所在的槽号。这两个 plc 在 STEP7 编程软件中是单独定义的,所以除 plc 地址不一样,槽号是一样的;
3)在组态王中只须定义主设备的变量即可。
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