Installation manual

Networking
5-17
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
Example
The figure below shows a possible configuration of an MPI network. This example
clarifies the maximum possible distances in an MPI network.
max. 50m
max. 50m
max.
1000m
RS 485-
repeater
RS 485-
repeater






S7-400
S7-400 S7-400
S7-400 S7-400
Spur line

0
11
7
8910
3456
OP
PG*
OP
OP
 Programming device connected via spur line for maintenance
 Terminating resistor switched on
0 ... x MPI addresses of nodes
Programming
device*
Figure 5-10 Configuration of an MPI network