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Goodrive600 series high-performance multifunction VFD
Communication networking
-218-
Rectifier unit
Inverter unit 1
Inverter unit 2
Inverter unit
N
...
A
B
A
B
A
B
A
B
PLC
PROFINET
communication
card
PROFINET
communication
card
PROFINET
communication
card
PROFINET
communication
card
Figure 6-12 PROFINET line-type network topology
Note: For a star-type network topology, you need to prepare PROFINET switches.
Rectifier
unit
Inverter
unit 1
Inverter
unit 2
Inverter
unit
...
PLC
A
B
A
B
A
B
A
B
Switch
PROFINET
communication
card
PROFINET
communication
card
PROFINET
communication
card
PROFINET
communication
card
Figure 6-13 PROFINET star-type network topology
6.8.3 Communication performance
The number of nodes in the PROFINET bus network depends on the number of nodes supported by the PLC CPU. Take
SIMATIC S7-1200 PLC as an example: One PROFINET communication card occupies only one IO node, while S7-1200
supports only 16 nodes, and therefore the network can contain only 15 PROFINET communication cards (since the PLC
occupies one onde).
PLC model
PROFINET
IO nodes
Submodules
S7-1200
16
16*16
6.8.4 Commissioning procedure
6.8.4.1 Commissioning flowchart
Figure 6-14 shows the commissioning procedure.