EK1122-0080 BECKHOFF 2-Port EtherCAT Junction Fast Hot Connect

Product Overview

The EK1122-0080 (EK1122-0080) is a specialized 2-port EtherCAT junction terminal designed for advanced modular automation architectures. Featuring Fast Hot Connect technology, this module allows for the rapid docking and undocking of EtherCAT segments, significantly reducing the synchronization time required when changing tools or reconfiguring modular machine parts. In dynamic industrial sectors such as robotic tool changing, semiconductor manufacturing, and flexible assembly lines, the EK1122-0080 serves as the critical coupling point. By enabling near-instantaneous communication recovery between stations, it minimizes cycle interruptions and maximizes throughput in high-speed, variable-topology environments.

Technical Configuration

The EK1122-0080 functions as a transparent junction within the EtherCAT segment, utilizing two RJ45 interfaces to facilitate the branch-off of additional EtherCAT lines. Unlike standard couplers, the -0080 variant is optimized for speed, offering a minimal internal delay of approximately 1 microsecond. The hardware is housed in a compact 24 mm polycarbonate casing, powered directly via the E-bus. It supports distances of up to 100 meters between stations using shielded Cat.5 (or higher) cabling. The "Fast Hot Connect" functionality is hardcoded into the terminal's physical layer, meaning no software configuration is required for basic junction tasks. Furthermore, with ATEX II 3 G certification, this module is rated for deployment in hazardous areas where explosive gases (Zone 2) may be present.

Technical Specifications

Technical FAQs

What is the primary difference between the EK1122 and the EK1122-0080?

The EK1122-0080 specifically features Fast Hot Connect circuitry. While both function as 2-port junctions, the -0080 version is engineered to reduce the link-up time of EtherCAT slave groups, making it the preferred choice for systems where machine modules are frequently swapped during operation.

Does this junction require a dedicated IP address or software setup?

No, configuration is not required. The EK1122-0080 operates as a transparent EtherCAT device. The master controller automatically detects the junction and any connected downstream devices through the EtherCAT protocol's auto-enumeration process.

Can the EK1122-0080 be used in environments with high electrical noise?

Yes, the module conforms to EN 61000-6-2 and EN 61000-6-4 for industrial EMC immunity and emission. However, to maintain the 100 Mbit/s transfer rate over 100 meters, high-quality shielded Ethernet cables (min. Cat.5) must be used.

Engineering & Installation Guide

Fast Hot Connect Topology Planning:

When designing a Fast Hot Connect system, ensure that the EtherCAT Master supports the Fast Hot Connect feature. To achieve the fastest possible connection times, place the EK1122-0080 as close as possible to the docking interface. Limit the number of nodes in the "Hot Connect" group to maintain optimal synchronization speeds.

Shielding and Grounding in ATEX Zones:

In applications requiring ATEX (Ex nA) compliance, the 35 mm DIN rail must be connected to a clean functional earth. Use the specific push-in connection for wiring to ensure vibration-resistant contact. Ensure that the RJ45 connectors are fully seated and that the cable shielding is continuous across the junction to prevent transient voltages in hazardous environments.

Mechanical Mounting and Spacing:

The module uses a double slot and key connection for side-by-side mounting. While the EK1122-0080 supports variable installation positions, vertical mounting is recommended for optimal heat dissipation. Ensure that the signal LEDs remain visible for field diagnostics, as they provide critical real-time status on Link/Activity for both ports.