IL2302-C900-0000 Beckhoff
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The Beckhoff IL2302-C900-0000 is part of the IL Coupler Box Units series and features a 16-bit controller architecture with 4 digital inputs and 4 digital outputs. Its protection class is rated at IP65/66/67, and it utilizes a fieldbus type of Ethernet TCP/IP. The housing material is polyamide, the bus connection is via RJ45, and it supports up to 120 extension modules.
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Product Description:
The IL2302-C900-0000 is a remote I/O coupler box manufactured by Beckhoff for the IL Coupler Box Units series. It consolidates sensor and actuator wiring near the machine and transfers those signals to the control system over Ethernet, reducing cabinet space and cable runs. In industrial automation, it bridges discrete field devices with programmable controllers, enabling decentralized installation while maintaining deterministic data exchange.
The fieldbus interface uses a single RJ45 connector that carries Ethernet TCP/IP frames, allowing standard network switches and patch cords to link the unit with the plant network. A 16-bit controller polls the four digital inputs and refreshes the four digital outputs in fixed cycles, so response times remain predictable. Configuration parameters and process images occupy 512 bytes of onboard nonvolatile memory, preserving settings after a power loss. With an enclosure rated to IP65/66/67, the coupler resists water, oil spray, and airborne dust without requiring an additional enclosure. Application programs developed under IEC 61131-3 exchange variables with the device through Beckhoff ADS or other Ethernet services.
The housing is 26.5 mm deep, 30 mm wide, and 175 mm tall, allowing installation in narrow mechanical cavities. Impact-resistant PA6 (polyamide) forms the outer enclosure, while a polyurethane compound seals the electronics against moisture. Two M3 mounting holes provide direct fastening points, and threaded M12 signal ports provide secure connections. Through the integrated extension bus, up to 120 additional IL modules can be daisy-chained to expand the station without requiring extra couplers. Field voltage and network connections are located on the compact housing, reducing the amount of wiring routed back to the main control cabinet.
