Siemens Simatic S7-400

Networking
5-17
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
Example
The figure below shows a possible configuration of an MPI network. This example
clarifies the maximum possible distances in an MPI network.
max. 50 m
max. 50 m
max.
1000 m
À Terminating resistor switched on
Á Programming device connected via spur line for maintenance
0 ... x MPI addresses of nodes
RS 485
repeater
RS 485
repeater
À
À
À
À
À
À
S7-400
S7-400 S7-400
S7-400 S7-400
Spur line
Á
0
11
7
8910
3456
OPOP
OP
Programming
device*
Programming
device*
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