EK1000 Beckhoff
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The Beckhoff EK1000 is part of the EK EtherCAT Couplers series and features both RJ45 100 Mbit/s Ethernet TSN and EtherCAT interfaces. This model supports a power supply of 24 VDC, offers a power contact current of 10 Amps, and can accommodate up to 65,535 EtherCAT terminals. The EK1000 measures 71 x 100 x 73 mm and weighs 218 grams.
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Product Description:
The EK1000 coupler is produced by Beckhoff as a member of the EK EtherCAT Couplers series. It operates as a head station that links modular EtherCAT I/O terminals to Ethernet networks that support Time-Sensitive Networking. This connection enables deterministic communication in industrial automation systems where short cycle times and precise synchronization are critical. The coupler allows standard network infrastructure to communicate with a downstream EtherCAT terminal segment while maintaining the timing behavior required for coordinated control.
Its left side hosts an RJ45 100 Mbit/s Ethernet (TSN) port designated X001, which serves as the incoming real-time Ethernet channel from the machine network. A separate RJ45 100 Mbit/s EtherCAT port designated X002 forwards the processed telegrams to the terminal segment. Both ports use Ethernet 100BASE-TX twisted-pair media, allowing Category 5e cabling with a maximum length of 100 m without signal degradation. Communication follows the EtherCAT Open Mode protocol, allowing the coupler to pass frames without altering addressing information while still generating distributed clocks. Up to 65,535 EtherCAT terminals can be attached downstream, providing extensive capacity for modular I/O expansion. The switching logic maintains full throughput without introducing store-and-forward latency, which helps preserve predictable communication between the network and connected terminals.
For power distribution, the unit accepts a 24 VDC supply and draws up to 4 A to operate its logic and energize the internal E-bus. The E-bus can supply 2 A to connected terminals, protecting the internal current paths from excessive loading. Separate power contacts deliver 10 A at 24 VDC to loads on the I/O modules without routing high current through the coupler electronics. The compact 71 × 100 × 73 mm housing simplifies installation in space-limited control cabinets. With a mass of only 218 g, the coupler adds minimal load to a DIN rail. The available current must be considered when selecting and arranging connected terminals, particularly when a large terminal segment includes modules with substantial E-bus demand.
