Lenze EtherCAT Controller-based Automation - Manual (Page 42)

7 Commissioning of the system
7.3 Detailed description of the commissioning steps
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Lenze · Controller-based Automation · EtherCAT® Communication Manual · DMS 6.4 EN · 04/2014 · TD17
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7.3 Detailed description of the commissioning steps
In the following sections, the individual commissioning steps are described.
Follow the instructions of these sections step by step in order to commission your system.
7.3.1 Planning the bus topology
Before you set up an EtherCAT network, draw up a plan of the network.
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How to plan the bus topology for your configuration
1. Create an overview screen of the planned EtherCAT network with all the field devices to be
integrated into the network.
2. Start with the Lenze Controller (master).
3. Add the other field devices (slaves) below.
The following cases are distinguished:
• Operation without synchronisation via distributed clocks:
DC synchronisation is mostly not required if exclusively Logic field devices are to be
operated on the network. The sequence of the field devices on the fieldbus can be freely
selected.
• Operation with synchronisation via distributed clocks:
DC synchronisation is required if Motion and Logic field devices are to be operated on the
network. The first node connected to the Lenze Controller must be capable of being a DC
master. The sequence of the other Logic and Motion field device interface connections at
the fieldbus can be freely selected.
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For more details on how to use the Lenze engineering tools, please refer to the
corresponding software manuals and the online help systems.