Lenze EtherCAT control technology Manuale Utente Pagina 22

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Control technology | EtherCAT communication manual
The Lenze control system with EtherCAT
Required hardware components
22 L DMS 3.1 EN 01/2011 TD17
4.2 Required hardware components
4.2.1 The industrial PC - the central component
The industrial PC is the central component in the EtherCAT bus system:
The industrial PC is the EtherCAT master.
The industrial PC acts as EtherCAT gateway to be able to access the field devices from
the engineering PC via Ethernet and EtherCAT.
The devices must be connected in a line. To ensure that the system operates properly,
the physical arrangement of the EtherCAT field devices must comply with the bus
topology created in the »EtherCAT Configurator«.
Each EtherCAT slave has two EtherCAT ports.
In contrast to Ethernet, one port is assigned as input, the other one as output.
Input (IN) and output (OUT) must not be reversed!
A bus termination at the last slave is not required since the bus system at the last slave
is terminated automatically.
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