Example Of A Profibus Subnet - Siemens SIMATIC S7-300 Hardware And Installation Manual

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Example: Installing a PROFIBUS subnet
The figure below shows you the block diagram of a PROFIBUS subnet.
S7-300 with
CPU 31x-2 DP
as DP master
ET 200M
SF
SIEMENS
BUSF
DC5V
DC5V
FRCE
FRCE
RUN
RUN
STOP
2
À
3
3
0
PG**
ET 200M
12
À
* 2 = Default PROFIBUS address for DP master
**Connect via spur lines to MPI only during Commissioning/Maintenance (with MPI address = 0)
0 ... x PROFIBUS addresses of nodes
0 ... x MPI addresses of nodes
À Terminating resistance on
Figure 5-18 Example of a PROFIBUS subnet
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02
ET 200M
S7-300
SF
SIEMENS
BUSF
DC5V
FRCE
RUN
STOP
4
5
ET 200B
ET 200B
11
10
ET 200M
S5-95U
6
7
ET 200B
ET 200B
9
8
Configuring
5-49

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