EK1100-0018 Beckhoff
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The Beckhoff EK1100-0018 is part of the EK EtherCAT Couplers series and supports the EtherCAT Device Protocol with a baud rate of 100 MBaud. It features 2 RJ45 bus connections, 24 VDC power contacts rated at 10 A, and is designed for 35 mm DIN rail mounting. The coupler weighs 105 grams and has an IP20 protection class with dimensions of 44 x 100 x 68 mm.
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Product Description:
The EK1100-0018 is an EtherCAT coupler produced by Beckhoff and placed within the EK EtherCAT Couplers series. It functions as the head station that links decentralized I/O terminals to the EtherCAT real-time fieldbus, translating the internal terminal bus into the network format required for industrial controllers. It mounts on a standard DIN rail beside Beckhoff I/O slices and is intended for applications where deterministic communication between PLCs, drives, and sensors is necessary.
The data interface follows the EtherCAT Device Protocol and sustains a transmission speed of 100 MBaud, allowing cyclic process data to move without time-slot dependence. Physical attachment to the trunk line is realized through 2 × RJ45 connectors that enable line or redundant ring layouts. Signal processing in the coupler adds a typical latency of only 1 µs, so downstream terminal states are updated within a single controller cycle. With a maximum segment length of 100 m on shielded copper, wiring can span sizable machines while staying inside the electrical limits of Ethernet 100BASE-TX. These parameters ensure the bus head can coexist with drives, robots, and high-speed inspection equipment on the same network.
Power distribution to the slice terminals is routed through integrated power contacts rated at 24 VDC, 10 A, eliminating additional feed modules for moderate I/O loads. The electronics section is supplied separately with 24 VDC (-15%/+20%), so controller outages are avoided when field power is switched off. Up to 65535 terminals may be addressed, giving the node sufficient address space for very large installations. An IP20 housing measures 44 × 100 × 68 mm and weighs 105 g, making the unit suitable for compact cabinets and allowing direct snap-in on a 35 mm DIN rail without extra fasteners.
