Name: Siemens SIMATIC S7-300 Module data
Brand: Siemens
Rating: 4 (1 reviews)

To Next Page

To Previous Page

CPU 31xC and CPU 31x, Technical data

Manual, Edition 08/2004, A5E00105475-05

3-1

Communication

3.1 Interfaces

3.1.1 Multi-Point Interface (MPI)

Availability

All CPUs described in this manual are equipped with an MPI interface X1.

A CPU equipped with an MPI/DP interface is configured and supplied as MPI. To use the

DP interface, set DP interface mode in STEP 7.

Properties

The MPI (Multi-Point Interface) represents the CPU interface for PG/OP connections, or for

communication on an MPI subnet.

The typical (default) transmission rate of all CPUs is 187.5 kbps. You can also set 19.2 kbps

for communication with an S7-200. The 315-2 PN/DP and 317 CPUs support transmission

rates up to 12 Mbps.

The CPU automatically broadcasts its bus configuration via the MPI interface (the

transmission rate, for example). A PG, for example, can thus receive the correct parameters

and automatically connect to a MPI subnet.

Note

You may only connect PGs to an MPI subnet which is in RUN.

Other stations (for example, OP, TP, ...) should not be connected to the MPI subnet while

the system is in RUN. Otherwise, transferred data might be corrupted as a result

interference, or global data packages may be lost.

Other manuals for Siemens SIMATIC S7-300 Module data

Questions and Answers:

Need help?

Do you have a question about the Siemens SIMATIC S7-300 Module data and is the answer not in the manual?

General