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| Electric Drives and Controls - Product Catalog |
| The SERCOS III network - simple topology |
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| SERCOS III networks have at least one master to maintain control and one slave to execute the automation functions. The devices are configured in a simple, clearly laid out line or ring topology.
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Additional cable connects two lines to a ring topology
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Every SERCOS III device has 2 Ethernet ports which are connected to the previous and next devices via a CAT5e Ethernet cable. The SERCOS III line or ring topology eliminates the need for expensive network technology such as switches.
Line topology
All of the SERCOS III devices are connected in series. The master is located at the start of a line or between two lines. The data passes through the slaves and is looped back by the last device. All of the users analyze the data that is passing in both directions, and this guarantees that all data reaches each user during one cycle.
The advantage:
Simple, low-cost device networking over long distances, e.g. assembly or processing lines.
Ring topology
One additional cable can be used to form a SERCOS III ring network. The master sends data to the ring in opposite directions from the two ports. The data which is traveling in each direction can be analyzed.
The advantages:
The ring topology offers the added advantage of redundant cabling which improves fault tolerance.
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