In most procurement cycles, EL6695 is considered with Beckhoff El9410, El9550 Beckhoff and Beckhoff El2809, giving decision-makers confidence that they’ve chosen the most dependable component.
EL6695 - Beckhoff EtherCAT Communication Interface
Beckhoff EL6695 Position Measurement & Communication is an advanced EtherCAT Communication Interface built for precise, synchronized data exchange in automation systems.
| Brand | Beckhoff |
| Product Type | EtherCAT Communication Interface |
| Product | EL6695 |
EL6695 Beckhoff EtherCAT Communication Interface Technical Specifications
| Specification | Value |
|---|---|
| Technology | primary side: E-bus (terminal strand), secondary side: 2Â x 100Â Mbit/s Ethernet, RJ45, In/Out |
| Distributed clocks | yes |
| Power supply | primary: via the E-bus, secondary: via connector, 24 V |
| Electrical isolation | 500 V (E-bus/secondary side) |
| Special features | usable in TwinCAT as a reference clock, synchronous data exchange, flexible PDO mapping, supports AoE, EoE, FoE, VoE |
| Weight | approx. 75 g |
| Operating temperature | 0…55°C |
| Storage temperature | -25…+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, UL |
| Housing - Design form | compact terminal housing with signal LEDs |
| Housing - Material | polycarbonate |
| Housing - Dimensions (W x H x D) | 24 mm x 100 mm x 52 mm |
| Housing - Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Housing - Side by side mounting by means of | double slot and key connection |
| Housing - Wiring | specific push-in connection |
| Cable length | 100 m 100BASE-TX, secondary port |
| Bit width in the process image | max. 3 kbyte per direction (dependent on the EtherCAT master, TwinCAT currently max. 1400 byte) |
| Hardware diagnostics | status LEDs |
The Beckhoff EL6695 EtherCAT Communication Interface is designed for high-performance position measurement and communication between networks. Featuring dual 100 Mbit/s Ethernet ports (RJ45) on the secondary side and E-bus connectivity on the primary side, it enables synchronous data exchange across complex systems. With distributed clock support, flexible PDO mapping, and compatibility with protocols such as ADS over EtherCAT (AoE), Ethernet over EtherCAT (EoE), File over EtherCAT (FoE), and VoE, the EL6695 provides seamless communication within automation environments. It supports up to 3 kB process data per direction (TwinCAT currently max. 1400 bytes), ensuring efficient handling of large datasets.
Powered via the E-bus on the primary side and a 24 V external connector on the secondary side, the EL6695 ensures reliable operation with 500 V electrical isolation between communication layers for system safety. Its compact polycarbonate housing (24 × 100 × 52 mm) fits neatly into DIN rail installations, and diagnostic LEDs simplify system monitoring. With compliance to EN 61000-6-2/EN 61000-6-4 EMC standards, vibration/shock resistance as per EN 60068, and international approvals including CE and UL, the module is built for durability and global deployment. Operating in temperatures from 0°C to +55°C and with an IP20 protection rating, it is optimized for industrial conditions.
In real-world applications, the Beckhoff EL6695 Position Measurement & Communication EtherCAT Terminal is widely used in robotics, CNC machinery, motion control, and process automation where synchronized communication is essential. Maintenance engineers benefit from its hardware diagnostics and stable performance, while senior automation teams value its scalability in distributed systems. For engineering students and trainees, the EL6695 demonstrates how real-time communication and clock synchronization improve machine accuracy. Compact, flexible, and robust, the Beckhoff EL6695 helps industries achieve higher productivity and long-term reliability in advanced automation networks.
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