Coupler With Pof Connection; Ek1541 - Beckhoff EK1101 Documentation

2.5

Coupler with POF connection

2.5.1

EK1541

2.5.1.1 EK1541 - Introduction
EK1541 EtherCAT coupler with ID switch, POF connection
The EK1541 Coupler connects EtherCAT with the EtherCAT Terminals (ELxxxx). A station consists of an
EK1541 coupler, any number of EtherCAT Terminals, an EL9011 bus end cap or an EK1110 EtherCAT
extender.
The coupler converts the telegrams from Ethernet 100BASE-FX-POF physics to E-bus signal representation
in passing with minimum latency The Polymeric Optical Fiber (POF) connection enables distances of up to
50 m between two couplers. Unlike the glass fiber, the POF fiber is easily wireable in the field. The EK1541
has three hexadecimal ID switches for assigning an ID to a group of EtherCAT components.
The coupler supplies the connected terminals with the necessary E-bus current for communication. The
coupler can supply a maximum of 5V/2A. Power feed terminals (e.g. EL9410) must be integrated if more
current is required.
The device supports the HotConnect procedure, see EtherCAT documentation. The characteristics of the
EK1541 in relation to this are:
• ID can be set on the device via 3 rotary selector switches within the range 0 to 4095 (hexadecimal)
• the ID is readable online by the EtherCAT master via the process data
• if the EtherCAT master supports HotConnect, then an I/O group can be adopted dynamically into the
EtherCAT communication. This group can then be located at any position within the EtherCAT network.
Variable topologies are therefore easily implementable.
Quick links
• EtherCAT basics [} 31]
• Application notes [} 59]
EK110x, EK15xx Version: 3.6
Product overview
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