BECKHOFF EL6614 EtherCAT Terminal

Description

The BECKHOFF EL6614 is a 4-port Ethernet switch terminal designed for use within an EtherCAT Terminal system. It serves as an active, decentral communication interface that routes standard Ethernet-based traffic transparently through the terminal network without disrupting the performance or cyclic precision of the underlying EtherCAT communication. Utilizing a store-and-forward switching architecture, it ensures reliable packet delivery across all connected nodes.

This compact unit integrates external Ethernet-enabled field devices, such as industrial PCs, printers, vision sensors, and programming adapters, directly into the control environment. The BECKHOFF EL6614 enables a highly decentralized network layout, minimizing the need for standalone switch components in the control cabinet and streamlining localized wiring topologies.

The terminal draws its operating power entirely from the internal E-bus connection, eliminating the requirement for separate field-side load supply lines. Robust electrical isolation of 500 V between the internal E-bus and the external Ethernet lines provides reliable signal decoupling, protecting the upstream PLC system from potential field-side disturbances and ground loops.

Features

• Four RJ45 physical ports supporting 10BASE-T/100BASE-TX Ethernet connections.
• Automatic setting capabilities via IEEE 802.3u auto-negotiation, enabling half or full-duplex operation at 10 or 100 Mbit/s.
• Store-and-forward switching mode for structured and reliable packet distribution.
• Full, transparent compatibility with all Ethernet (IEEE 802.3)-based communication protocols.
• Built-in hardware diagnostics powered by clear status LEDs located on the front face.
• Integrated software features including an onboard DHCP and BootP server.
• Inherent support for Real-Time (RT) Ethernet and publisher/subscriber network structures.

Applications

• Decentralized integration of standard Ethernet nodes within space-restricted control enclosures.
• Direct network interfacing for vision systems, diagnostic terminals, and barcode scanners.
• Temporary or permanent connection of programming adapters and engineering PCs directly to the I/O terminal segment.
• Standard network distribution within EtherCAT control topologies without auxiliary DIN rail switches.

Technical Specifications

General

Interface and Communication

Electrical and Power

Environmental and Mechanical

Compliance and Safety

Connections / Interfaces

Installation Guidelines

1. Ensure the entire industrial control cabinet and terminal assembly are completely de-energized before mounting.
2. Install the terminal onto a standard 35 mm DIN rail (conforming to EN 60715). Ensure the double slot and key connection with adjacent terminals is fully interlocked.
3. Secure the terminal block using appropriate mechanical end anchors to prevent lateral shifting.
4. Connect standard, shielded twisted-pair Ethernet cables equipped with RJ45 plugs directly to the physical ports, verifying that cable segments do not exceed 100 m.
5. Re-apply power to the EtherCAT network. Monitor the integrated diagnostic LEDs on the front panel to verify proper communication and power routing through the E-bus.

Replacement Recommendations

1. Ensure the system is safely shut down and power supplies to the E-bus and adjacent modules are completely isolated.
2. Label and disconnect the Ethernet lines from the four RJ45 ports.
3. Release the locking mechanism and dismount the terminal from the DIN rail.
4. Slide the replacement terminal onto the DIN rail, verifying clean bus contact connections.
5. Reinsert the RJ45 cables into their designated ports and restore system power. Verify diagnostic LED behavior to confirm active network routing.