Profibus Dp Interface - Siemens SIMATIC S7-400 Reference Manual

Multipoint Interface as DP Interface
You can also configure the MPI interface as a DP interface. To do this, you can
reconfigure the MPI interface under STEP 7 in SIMATIC Manager. You can use
this to set up a DP line with a maximum of 32 slaves.
1.7

PROFIBUS DP Interface

Connectable Devices
You can connect any PROFIBUS DP slave that complies with the standard to the
PROFIBUS DP interface.
In this case, the CPU is either a DP master or DP slave connected via the
PROFIBUS DP field bus to the passive slave stations or other DP masters.
Some connectable devices take a supply of 24 V from the interface. This voltage is
available there in non-isolated form.
Connector
Use only the bus connector for PROFIBUS DP or PROFIBUS cable for connecting
devices to the PROFIBUS DP interface (see Chapter 7 in the Installation Manual).
Automation System S7-400 CPU Specifications
A5E00165965-01
Structure of a CPU 41x
1-23