Setting up the PROFINET IO network
Section 3-4
21
3-4-1-2 Star
The star topology is the most common topology for Ethernet networks. A
central switch allows for communication between all connected devices.
Figure 3.9: Ethernet star topology
Advantages of the star topology:
• Flexible adding and removing of devices without changes in existing
connections.
• Easy diagnostics of the network by fault isolation.
• Reduced data traffic per connection.
Disadvantages of the star topology:
• Additional cabling effort and cost.
• Failure or power disruption of the switch will fail the complete network.
/i
Switch
Part
Recommendation
Switch
Industrial Ethernet Switch (either managed or unmanaged).
Summary of Contents for CJ1W-CRM21
Page 1: ...CJ1W PNT21 PROFINET IO Controller Unit OPERATION MANUAL Cat No W12E EN 02 ...
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Page 46: ...Installation of Configuration Software Section 3 5 30 ...
Page 76: ...Generic IO Device DTM Section 4 4 60 ...
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