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DP/DP Coupler is used to connect two PROFIBUS DP networks in order to enable the data transfer between the master of both networks. The masters can be in 2 different and independent subnet with different transmission speed while the ultimate connection in DP DP coupler should be in copper cable.

In this video , you will see the basic concept of DP DP coupler and how to configure and program it in STEP 7.

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