Siemens SIMOTION D425-2

Connecting
3.7 Connecting PROFIBUS/MPI
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 02/2012
69
Example
This illustration below shows an example configuration of a subnet with D4x5-2.
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3.7.7 Operating the X136 interface as MPI
Applications
The X136 interface can also be operated as an MPI interface instead of a PROFIBUS DP
interface. The typical (default) baud rate is 187.5 Kbaud. A baud rate of up to 12 MBaud can
be set for communication with other CPUs. It should be noted, however, that a rate of
12 MBaud is not supported by all CPUs (e.g. smaller SIMATIC S7 CPUs).
The following list provides examples of when using MPI (multi-point interface) may prove
effective:
● If a PG/PC is being used with an MPI interface
● If an OP/TP only has an MPI interface
(newer devices have PROFIBUS or PROFINET interfaces)
● If SIMOTION and SIMATIC CPUs are coupled via XSEND/XRECEIVE