In-Stock, Ships Today
Part Number:

EK1122

Manufacturer: Beckhoff
Series: EK EtherCAT Couplers

Current response time:

6 Minutes

50 Seconds

  • MPN: EK1122-0000
  • Rated 4.4 (34 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The EK1122 is a 2-port EtherCAT junction designed for the coupling of EtherCAT junctions, supporting a maximum station distance of 100 meters. As part of Beckhoff's EK EtherCAT Coupler Series, it features a data transfer rate of 100 Mbit/s. Additionally, it operates with a current consumption of approximately 220 mA and allows hot-connect capabilities.

In-Stock, Ships Today
Part Number:

EK1122

Manufacturer: Beckhoff
Series: EK EtherCAT Couplers

Current response time:

6 Minutes

20 Seconds

  • MPN: EK1122-0000
  • Rated 4.4 (34 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The EK1122 is a 2-port EtherCAT junction designed for the coupling of EtherCAT junctions, supporting a maximum station distance of 100 meters. As part of Beckhoff's EK EtherCAT Coupler Series, it features a data transfer rate of 100 Mbit/s. Additionally, it operates with a current consumption of approximately 220 mA and allows hot-connect capabilities.

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Product Description

Beckhoff produces the EK1122, a crucial part of industrial automation systems. The EK EtherCAT Coupler Series includes this 2-port EtherCAT junction, which is essential for joining several EtherCAT network segments. In industrial settings, this little gadget facilitates dependable and effective data transport for a range of applications. The EK1122's capacity to speed up communication across vast distances is one of its most important features. Flexible network topologies are possible in big industrial environments with a maximum station distance of 100 meters. It is based on the mechanics of signal transmission in Ethernet connections. Long-distance electrical signals might deteriorate because of things like interference and attenuation, but the EK1122 guarantees dependable data transfer within its designated range. This is accomplished by using shielded Ethernet/EtherCAT cables (at least Category 5), which serve to preserve signal integrity and reduce signal deterioration.

High-speed communication between various automation system components is made possible by the EK1122's data transfer rate of 100 Mbit/s. As an Ethernet communication standard, the 100 Mbit/s rate guarantees compatibility with a wide range of systems and devices. Digital communication, which encodes data into electrical signals and transmits them as a sequence of bits, is the foundation of this capacity. A greater bit rate allows for speedier communication since it allows for the transmission of more data per second. With a small latency of around one µs, the EK1122 is another noteworthy characteristic. In automation systems, this low latency is essential to guaranteeing real-time responsiveness. Even little delays may have a big effect on productivity and efficiency in industrial operations where time is everything.

Data travel time via the coupler is reduced by the EK1122's minimum delay, which is made possible by its effective design and improved signal processing. Hot-connect capabilities, which enables segment connections and disconnections during operation without interfering with system operations, is another feature of the EK1122. The RJ45 sockets and the EtherCAT protocol provide the hot-connect feature, which allows the safe insertion and removal of devices while the system is switched on. Optimizing uptime and guaranteeing the uninterrupted functioning of industrial operations depend heavily on this skill. This concludes the EK1122's energy-efficient design, which has a typical current consumption of 220 mA. Wake Industrial gives consumers peace of mind and guarantees the EK1122's quality and dependability with a one-year warranty.

EK1122 Technical Specifications

Bus Interface: 2 x RJ45 ports
Protocol: EtherCAT
Device Type: 2-port EtherCAT junction
Hot-Connect Capability: Segment coupling/uncoupling during operation
Cable Type: Shielded Cat5 (Ethernet/EtherCAT)
Data Rate: 100 Mbit/s
Propagation Delay: approx. 1 µs
Max Segment Length: 100 m (100BASE-TX)
Current Consumption: typ. 220 mA
Power Supply: E-bus

Frequently Asked Questions about EK1122


Q: What is the EK1122 EtherCAT Coupler?

A: The EK1122 is a 2-port EtherCAT junction developed by Beckhoff as part of their EK EtherCAT Coupler Series. It serves as a crucial component in industrial automation systems, enabling the coupling of EtherCAT segments to facilitate efficient data transmission.

Q: What is the maximum station distance supported?

A: The EK1122 supports a maximum station distance of 100 meters. This capability allows for flexible network configurations within extensive industrial settings, ensuring effective communication between devices located far apart.

Q: What are the data transfer capabilities of the EK1122?

A: The EK1122 offers a data transfer rate of 100 Mbit/s, which is standard for Ethernet communication. This speed ensures high-speed communication between various parts of an industrial automation system, allowing for quick data exchange and efficient processing.

Q: How does the EK1122 achieve low latency?

A: The EK1122 has a minimal delay of approximately 1 µs, achieved through its optimized design and signal processing. This low latency is vital for real-time responsiveness in automation applications, where even minor delays can significantly affect performance.

Q: What is hot-connect functionality, and why is it important?

A: Hot-connect functionality allows users to connect or disconnect segments of the EtherCAT network while the system is powered on. This feature is crucial for maintaining system uptime and enabling easy maintenance or expansion without interrupting ongoing operations.

Internal Product Review

  • ‘‘This compact coupler facilitates flexible network configurations in industrial automation environments. The EK1122 ensures reliable data transmission with minimal delay (approximately 1 µs). Its hot-connect capability allows for efficient system maintenance and expansion without interrupting operations.’’

Symptom / Error Condition Probable Cause(s) Recommended Corrective Action
EK1122 not detected in TwinCAT scan – EtherCAT cable unplugged or damaged– Wrong device order / missing terminator– Unit in INIT state after reboot 1. Verify both RJ-45 cables are firmly seated and undamaged.2. Check that the EK1122 sits at the expected node address in the topology.3. Press F5 in TwinCAT → Scan Devices and acknowledge the topology change.
RUN LED off, LINK LED(s) off No 24 V DC supply or reversed polarity Measure supply voltage at 24 V and 0 V terminals; correct wiring and re-energize.
RUN LED flashes green-red Boot-loader or firmware fault Power-cycle once. If persistent, update firmware via TwinCAT → Advanced Settings ▸ Firmware Download.
Port 1 LINK on, Port 2 LINK off Downstream cable or device failure on Port 2 Swap cables between ports; if LINK follows cable, replace cable. Otherwise inspect the first device after Port 2.
Device stuck in PRE-OP or SAFE-OP – Incorrect Process-Data-Object (PDO) assignment– Sync manager mismatch after topology change In TwinCAT System Manager, re-map PDOs (right-click Coupler → Reload Device Description), then Activate Configuration and Restart in OP.
“AL status code 0x0014: Invalid setting” EEPROM parameters changed unintentionally (e.g., distributed clocks disabled) Open Online tab → Coe Online, restore default values (object 0x1C32/0x1C33) or load a working EtherCAT XML.
Frequent EtherCAT “lost frames” warnings – Excessive cable length or EMI– Mixed copper/fiber segments without proper media converters Keep total copper segment ≤ 100 m; route away from VFD/motor power; use shielded Cat-5e/6 and proper grounding.
Port LEDs flicker randomly, communication drops Power supply ripple/noise or undervoltage when other 24 V loads switch Add a DIN-rail buffer module or larger 24 V PSU; separate logic supply from inductive loads.
Unit overheats, housing > 55 °C Ambient temp > 50 °C or inadequate ventilation in panel Provide 50 mm free air above/below; add fan or move EK1122 away from heat-dissipating drives/PSUs.
Device identification mismatch after replacement Replacement unit has newer firmware or different revision ID Right-click device in TwinCAT → Change Revision ID to match actual HW, then download revised configuration.
Model Network Function Ports (connector) Distinct Features
EK1122 2-port EtherCAT junction (branch coupler) 2 × RJ-45 (≤ 100 m each) Supports Hot Connect; lets you form star topologies inside an EL terminal chain
EK1100 Standard EtherCAT bus coupler 2 × RJ-45 Converts 100BASE-TX to Beckhoff E-bus; up to 65 535 terminals per station
EK1101 Coupler with ID switch 2 × RJ-45 Three hex ID switches enable flexible station addressing / fast Hot Connect
EK1110 EtherCAT line-extension terminal 1 × RJ-45 Adds an extra 100 m without config; powered from E-bus
EK1300 EtherCAT P coupler (data + power) 2 × M8 P-coded Combines communication and 24 V DC (US/UP) in one 4-wire cable
EK1310 1-port EtherCAT P extension with feed-in 1 × M8 P-coded Converts EtherCAT → EtherCAT P; injects/boosts power for downstream devices 
Hex Code TwinCAT / EtherCAT Diagnostic Text
0x0002 No memory
0x0011 Invalid requested state change
0x0014 No valid firmware / invalid setting
0x0017 Invalid Sync-Manager configuration
0x001B Sync-Manager watchdog
0x001E Invalid Sync-Manager IN (input) configuration
0x001F Invalid watchdog configuration
0x0026 Inconsistent settings
0x0029 Free-Run needs 3-buffer mode
0x0030 Invalid DC Sync configuration
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