Configuring
S7-300 Programmable Controller Hardware and Installation
A5E00105492-01
4-43
Example: CPU 314C-2 DP as MPI and PROFIBUS node
The figure below shows you an assembly with a CPU 314C-2 DP integrated in an
MPI subnet and also operated as DP Master in a PROFIBUS subnet.
OP 27
S7-300
S5-95U
ET 200B
PG*
S7-300
S7-300
S7-300
OP 27
ET 200M
S5-95U
ET 200B
S5-95U
ET 200B
ET 200B
2
3
4
56
8
7
ET 200M
2
3
4
5
6
8
7
11
9
0
PROFIBUS subnetMPI subnet
S7-300 with
CPU 314C-2 DP
as DP master
Terminating resistance on
* Connect via spur lines for commisioning/maintenance
(with default MPI address)
only
0 ... x
MPI addresses of nodes
0 ... x
PROFIBUS addresses of nodes
RS 485-
Repeate
r
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
SF
BUSF
DC5V
FRCE
RUN
STOP
SIEMENS
SF
BUSF
DC5V
DC5V
FRCE
RUN
STOP
SIEMENS
10
Figure 4-17 Example: CPU 314C-2 DP as MPI and PROFIBUS node