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Siemens CPU 314 Hardware And Installation Guide

Siemens CPU 314
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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
A5E00105492-03
5-43
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([DPSOH,QVWDOOLQJDQ03,VXEQHW
The figure below shows you the block diagram of an MPI subnet.
PG
PG
OP 27
S7-300
1
1
3
5
SF
SF
BUSF
BUSF
DC5V
DC5V
FRCE
FRCE
RUN
RUN
STOP
STOP
CPU
PS
MPI addr. 2
S7-300
CPU
PS
CPU
3
S7-300
CPU
PS
CPU
3
S7-300
CPU
PS
CPU
CP
2
2
3
S7-300
CPU
PS
CPU
3
S7-300
CPU
PS
CPU
OP 27
3
S7-300
CPU
PS
CPU
FM
MPI addr. 1
MPI addr. 3 MPI addr. 4
MPI addr. 5 MPI addr. 6
MPI addr. 7
PROFIBUS
4
MPI addr. 9MPI addr. 8MPI addr. 10MPI addr. 11MPI addr. 12
OP 27
MPI addr. 13
MPI addr. 0
3
3
Figure 5-14 Example of an MPI subnet
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 Terminating resistor inserted
 S7-300 and OP 27 have subsequently been connected to the MPI subnet using their MPI default
address.
 CPU 31xC, 312, 314, 315-2 DP
You can also assign MPI addresses of CPs/FMs for these CPUs.
CPU 317-2 DP
CPs and FMs do not have their own MPI address in this CPU.
 In addition to the MPI address, the CP also has a PROFIBUS address (7 in this case).
 Connected via a stub cable using the default MPI address for commissioning/maintenance only

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Siemens CPU 314 Specifications

General IconGeneral
BrandSiemens
ModelCPU 314
CategoryController
LanguageEnglish

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