3-7
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Figure 3-4 shows the basic configuration of an MPI subnet using the rules
listed above.
C7
S7-300 S7-300
S7-300
S7-300S7-300
* Only during installation/maintenance connected via a tap line (with the default MPI address)
S7-300
** Connected later to the MPI subnet (with default MPI address)
0
16
0 ... x MPI addresses of the nodes
11131415
56 78
PG*
OP 25 OP 25
PG
OP 25**
À
À
➀ Terminating resistor activated
*** Apart from the MPI address (here address 7), the CP also has a PROFIBUS address
FM
12
CP
10
PROFI-
BUS
subnet***
3 + 4
9
Figure 3-4 Example of an MPI Subnet
Example of an MPI
Subnet
Configuring an MPI Network
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