Configuration
CX51x0
64
Version: 2.8
7.5.5
Configuring EtherCAT cable redundancy.
The Embedded PC has two independent Ethernet interfaces, which can be used for EtherCAT cable
redundancy. Cable redundancy offers resilience for the cabling. Interruptions of the EtherCAT
communication due to broken wires or unplugged LAN cables are avoided.
Fig. 29: Smallest possible configuration for EtherCAT cable redundancy.
Interference at the individual terminals is not intercepted by the cable redundancy.
Table 32: Cable redundancy, hardware for sample configuration.
Type
Description
CX51x0 Embedded PC
Is the EtherCAT master in the example.
Bus Coupler EK1110
EtherCAT extension can be used to extend an EtherCAT
segment by up to 100 m.
EK1100 Bus Coupler
The Bus Coupler relays the EtherCAT signal to connected
EtherCAT Terminals.
EtherCAT Terminals
Any number of EtherCAT Terminals can be connected to
the CX51x0 Embedded PC and the Bus Coupler.
Requirements:
• For TwinCAT 2 you have to install and license the supplement TS622x | TwinCAT EtherCAT
Redundancy on the Embedded PC:
• In TwinCAT 3 the supplement is already included and only has to be licensed.
• Hardware wired as EtherCAT ring (see Fig.: Smallest possible configuration for EtherCAT cable
redundancy) and added in TwinCAT.
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