Commissioning
3.3 Preparing the connection to the SINAMICS
Connection of the SINAMICS S120 to the Technology CPU
Product Information, 09/2011, A5E00480378-04
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Technology CPU: configuring the MPI interface
The X1-MPI/DP interface of the CPU is set by default to MPI communication with
187.5 KBit/s and to "not networked". To access the Technology CPU and the
SINAMICS S120, the transmission rate of the interface should be set to the highest
transmission rate supported by the programming device, for example 12 Mbps.
To do this, press the right mouse button to open the object properties of the
X1-MPI/DP interface and set the maximum possible transmission rate:
1. Click the "Properties" button in the "Interface" field of the "General" tab.
2. Set address 2 and select the MPI subnet from "Subnet". Click the "Properties" button.
3. Set the transmission rate to 12 Mbps in the "Network properties" tab.
Note
If the transmission rate of the X1-MPI/DP interface is set to a value larger than the
transmission rate supported by the programming device, it will no longer be possible
to access the CPU after the HW Config has been downloaded.
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