Description The Beckhoff EK1501 is an EtherCAT Coupler that connects EtherCAT Terminals to 100BASE-FX multi-mode fiber optic EtherCAT networks for high-speed industrial communication. Designed for distributed automation systems, the Beckhoff EK1501 converts fiber optic EtherCAT telegrams into the E-bus signal format while supporting long-distance transmission and flexible network topologies. Its integrated ID switches and fiber optic interface make it well suited for machine automation, process control, and remote I/O installations. Technical Specifications Condition New/Never Used Surplus Brand Beckhoff Category Industrial Automation Part Number EK1501 Subcategory EtherCAT Coupler Product Family EtherCAT Terminals Communication Protocol EtherCAT Transmission Medium Multi-mode Fiber Optic (50/125 µm) Fiber Connection 2 × SC Duplex Transmission Rate 100 Mbit/s Maximum Fiber Distance 2 km Supported EtherCAT Terminals Up to 65,535 Power Supply 24 V DC (-15% / +20%) E-bus Current Supply 2 A maximum Power Contacts 24 V DC, 10 A maximum Protection Rating IP20 Operating Temperature -25 °C to +60 °C Dimensions 51 × 100 × 69 mm Mounting 35 mm DIN Rail Approvals CE, UL, ATEX, IECEx, CCC Weight Approx. 0.42 lb (190 g) Information About EK1501 The EK1501 is a member of the Beckhoff EtherCAT Terminal system and functions as a fiber optic EtherCAT Coupler with multi-mode SC duplex connections. It converts incoming EtherCAT telegrams from a 100BASE-FX fiber optic network into the internal E-bus used by Beckhoff EtherCAT Terminals, enabling fast and deterministic communication across distributed automation devices. The coupler features three hexadecimal ID switches that support HotConnect functionality and allow flexible implementation of variable network topologies without extensive reconfiguration. Operating from a 24 V DC power supply, the EK1501 supports up to 65,535 EtherCAT Terminals in an overall system while providing up to 2 A of E-bus current for connected terminals. Key Features: Multi-Mode Fiber Interface: Utilizes dual SC duplex fiber optic ports for 100BASE-FX EtherCAT communication. Long-Distance Communication: Supports fiber optic connections of up to 2 kilometers between EtherCAT stations. EtherCAT Protocol Support: Converts Ethernet fiber optic telegrams directly into Beckhoff E-bus communication. HotConnect Capability: Three hexadecimal ID switches allow dynamic network grouping and simplified topology changes. Large System Capacity: Supports up to 65,535 EtherCAT Terminals within a single EtherCAT installation. High-Speed Data Transfer: Operates at a communication rate of 100 Mbit/s with approximately 1 microsecond propagation delay. DIN Rail Installation: Compact IP20 housing designed for mounting on standard 35 mm DIN rails in industrial control cabinets. Integrated E-bus Power Supply: Supplies up to 2 A of communication current to connected EtherCAT Terminals. The EK1501 delivers the reliability and precision required for high-speed industrial EtherCAT communication and distributed remote input/output control systems.
