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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.

Baud Rate
100 MBaud
Bus Connection
2 x RJ45
Delay
1 µs typ.
Dimensions (w X H X D)
44 x 100 x 68 mm
Hotconnect
No
Max Cable Length
100 m
Max Terminals
65535
Mounting
35 mm DIN rail
Network Medium
Ethernet 100BASE-TX
Power Contacts
24 VDC, 10 A
Power Supply
24 VDC (-15%/+20%)
Protection Class
IP20
Protocol
EtherCAT Device Protocol
Weight
105 g

Frequently Asked Questions about EK1100-0018:

Q: What network medium does the EK1100-0018 EtherCAT coupler use?

A: The EK1100-0018 coupler uses Ethernet 100BASE-TX as its network medium, supporting reliable EtherCAT communications.

Q: What type of bus connection does the EK1100-0018 support?

A: This coupler connects to the bus via two RJ45 ports, allowing daisy-chaining of EtherCAT segments.

Q: What is the maximum cable length for the EK1100-0018?

A: The EK1100-0018 supports a maximum cable length of 100 meters, providing flexibility in system wiring.

Q: What power contacts are available on the EK1100-0018?

A: This model is equipped with power contacts providing 24 VDC and 10 A to supply connected terminals.

Q: How many terminals can the EK1100-0018 support?

A: The EK1100-0018 can handle up to 65,535 terminals, making it suitable for large expansion configurations.


Internal Product Review

  • ‘‘The EK1100-0018 is a Beckhoff EtherCAT coupler built for EtherCAT Device Protocol networks with a 100 MBaud baud rate. Dual RJ45 bus connections and support for up to 65535 terminals make integration efficient across large distributed I/O systems. IP20 protection and 1 µs typical delay give this coupler a clean fit for fast, dependable control architectures.’’

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