Assembling the M7-400
8-30
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
8.6 Assembling an MPI Subnet or PROFIBUS-DP Subnet
2 Subnets
With the M7-400, you can
Assemble an MPI subnet via the MPI;
Assemble a PROFIBUS-DP subnet with an M7-400 master.
Chapter 7 explains how to assemble one of these subnets and what you must take
into account.
Note Relating to the M7-400
To be able to connect an M7-400 to a PROFIBUS-DP subnet as the master, it is
necessary to plug an IF 964-DP interface submodule either directly into the CPU
486-3/CPU 488-3, or into an EXM 478 expansion module belonging to the CPU.
Example of Operation in 2 Subnets
Shown in Figure 8-16 is an example of a configuration with M7-400 CPU,
integrated in an MPI subnet, and simultaneously acting as DP master in a
PROFIBUS-DP subnet.
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