EL1004 | BECKHOFF EtherCAT 4-Channel Digital Input Terminal, 24 V DC, 3 ms Filter

BECKHOFF · HMIs & Displays

Description The Beckhoff EL1004 is a four-channel digital input terminal designed to capture 24 V DC binary signals for EtherCAT automation systems. It provides electrically isolated signal transmission to upstream controllers and includes a built-in 3 ms input filter for stable and debounce-free operation. Each channel features LED status indication for clear diagnostics during commissioning and operation.     Technical Specifications Condition New/Never Used Surplus Brand BECKHOFF Category PLCs/Machine Control Part Number EL1004 Subcategory PLC Programming Terminal Product Type Digital Input Terminal Module Number of Inputs 4 Input Type Digital Module Type Input Supply Voltage 24 V DC Input Current 90 mA (typ.) Input Filter 3 ms Input Specification Type 1/3 Sensor Compatibility 2-wire sensors supported Signal Indication LED per channel Isolation Electrical isolation between field and logic levels Protection Rating IP20 Operating Temperature –25…+60 °C Storage Temperature –40…+85 °C Bus System EtherCAT Application Digital signal acquisition for automation systems     Information About EL1004 The EL1004 is part of the Beckhoff EL100x digital input terminal series, offering compact signal acquisition within modular EtherCAT architectures. It uses a Type 1/3 input specification and incorporates a 3 ms filter to eliminate switch bounce and ensure clean digital transitions. The module integrates easily with EtherCAT I/O stations and supports direct wiring of four 2-wire sensors through additional 24 V connection points. Typical usage includes machine control, distributed I/O systems, and industrial automation applications requiring reliable digital signal capture with fast fieldbus communication. Key Features: Four digital inputs: Captures 24 V DC binary signals for EtherCAT systems. Integrated input filter: 3 ms filtering minimizes bounce and enhances signal stability. LED indication: Each channel includes a state LED for straightforward diagnostics. Electrically isolated transmission: Ensures reliable communication to higher-level controllers. Compact EtherCAT design: Fits seamlessly into modular Beckhoff I/O stations. Direct sensor connection: Supports four 2-wire sensors with additional 24 V terminal points. Type 1/3 input specification: Optimized for industrial digital sensing applications. Wide temperature tolerance: Operates in harsh environments from –25 to +60 °C. The EL1004 delivers the reliability and precision required for distributed digital signal acquisition in modern EtherCAT-based automation systems.

Brand: BECKHOFF · Category: HMIs & Displays

Key features

• Four digital inputs: Captures 24 V DC binary signals for EtherCAT systems.
• Integrated input filter: 3 ms filtering minimizes bounce and enhances signal stability.
• LED indication: Each channel includes a state LED for straightforward diagnostics.
• Electrically isolated transmission: Ensures reliable communication to higher-level controllers.
• Compact EtherCAT design: Fits seamlessly into modular Beckhoff I/O stations.
• Direct sensor connection: Supports four 2-wire sensors with additional 24 V terminal points.
• Type 1/3 input specification: Optimized for industrial digital sensing applications.
• Wide temperature tolerance: Operates in harsh environments from –25 to +60 °C.

Specifications

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