2 detailed commissioning steps, 1 planning the bus topology, 2 installing field devices – Lenze EtherCAT control technology User Manual
Page 45: Detailed commissioning steps, Planning the bus topology, Installing field devices
DMS 3.1 EN 01/2011 TD17
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Control technology | EtherCAT communication manual
Commissioning of the system
Detailed commissioning steps
7.2
Detailed commissioning steps
In the following sections, the individual commissioning steps are described.
7.2.1
Planning the bus topology
Before you start to set up an EtherCAT network, first create a plan of your EtherCAT bus.
How to plan the bus topology for your configuration:
1. Create an overview of the planned EtherCAT network with all field devices to be
integrated.
2. Start with the industrial PC.
3. Add the other field devices below.
4. You have to distinguish between the following two cases:
• Operation without synchronisation via distributed clocks:
DC synchronisation is not required if exclusively Logic field devices are to be
operated on the network. The sequence of the field device interface connections
on the bus can freely be 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 control IPC must be
capable of being a DC master. The sequence of the other Logic and Motion field
device interface connections can freely be selected.
7.2.2
Installing field devices
For the installation of a field device, follow the mounting instructions for the respective
device.
More detailed information about how to work with the Lenze engineering tools
can be found in the corresponding manuals and online helps.
Note!
• The EtherCAT interfaces of all devices must be wired according to the planned
topology. The inputs (IN) and outputs (OUT) must not be reversed because
otherwise the topology changes.
.
• The structure of the EtherCAT configuration must be identical with the order
of the devices in the »EtherCAT Configurator«.
• The master automatically assigns the node addresses to the slaves.
Therefore, a manual address assignment is not required.