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3HAB7230-1/04
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组态王和多台西门子S7-300、400 PLC 通过 DP 协议通讯时，设备地址应如何定义？
1）硬件连接：计算机中插入一块CP5611（或CP5613)可实现将多个S7-300/400PLC连接在一条 DP 总线上。
2）DP 协议设置：所有 PLC 必须设置的 DP Slave 站， CP5611(或 CP5613)要求通过 Simatic net 设置的 DP 唯一 master 站；
3）组态王中设备地址定义：选择 PLC/西门子/S7-200 系列(DP)/Profibus-DP ，设备地址固定为 1.1 (该地址与从站 PLC 的地址设置无关)。
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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BUSSMANN FWH-50A 50A 500VAC/DC SEMICONDUCTOR FUSE
BUSSMANN FWH-50B BLADE TYPE FUSE 50A 500V CONDITION /
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