BECKHOFF EL6751 EtherCAT Terminal CANopen Master/Slave Module

Description

Engineered to bridge fieldbus technologies, the Beckhoff EL6751 serves as a high-performance 1-channel CANopen master/slave interface within an EtherCAT Terminal system. This communication terminal enables the seamless integration of CANopen-compliant fieldbus devices directly into the high-speed EtherCAT network. It can act as a CANopen network master and manager, or optionally operate as a CANopen slave, providing flexible architecture options for decentralized industrial networks.

The EL6751 offers robust galvanic decoupling and a standard 9-pin D-sub interface to ensure clean, noise-immune signal transmission in harsh industrial environments. By supporting both standard CANopen communication profiles and RAW-CAN protocol options, this terminal accommodates a wide range of legacy and modern automation devices.

Features

• Single-channel communication interface supporting CANopen master, CANopen manager, or optional CANopen slave operation.
• Galvanically decoupled D-sub interface (9-pin) conforming to standard CANopen specifications.
• Flexible data transfer rates ranging from 10 kbaud up to 1,000 kbaud (1 Mbaud).
• Comprehensive hardware diagnostics via integrated status LEDs.
• Supports RAW-CAN protocol for customized CAN bus communication requirements.
• Compact 24 mm terminal housing with integrated slot-and-key side-by-side mounting.

Applications

• Industrial manufacturing plants utilizing distributed fieldbus architectures.
• Integration of legacy CANopen-compliant sensors, actuators, and drives into EtherCAT networks.
• Heavy machinery and specialized control systems requiring CANopen master/slave configuration.
• Process automation and water treatment plants utilizing hybrid fieldbus solutions.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mounting: Mount the terminal on a standard 35 mm DIN rail (conforming to EN 60715). Ensure the locking mechanism is securely engaged.
• Wiring: Use the dedicated push-in connection technology for E-bus integration. For the CANopen interface, utilize a shielded 9-pin D-sub connector.
• Shielding & Grounding: Ensure proper shield grounding of the CAN network cable to maintain electromagnetic compatibility (EMC) and prevent signal degradation.
• Hazardous Areas: When operating under ATEX II 3 G Ex nA IIC T4 Gc conditions, install the terminal inside an enclosure providing at least IP54 protection conforming to EN 60079-15.

Compliance and Certifications

• CE
• UL Listed
• ATEX (II 3 G Ex nA IIC T4 Gc)