MDT Binary Input – Versatile status monitoring for KNX systems
The MDT binary input is the perfect solution for integrating and monitoring state changes in modern KNX building automation systems . With variants for 4, 8, 16 or 32 inputs and support for potential-free contacts as well as voltages of 12–24V AC/DC or 230V AC, the device is ideally suited for applications such as door and window contacts, push buttons and switches in residential and commercial buildings.
Key features
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Numerous variations:
- Available as a 4-speed, 8-speed, 16-speed or 32-speed model.
- Compatible with potential-free contacts and voltage inputs (12–24V AC/DC, 230V AC).
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Innovative features:
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Multi-tap function: Transmits up to four values/data point types (DPTs) per input.
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Four integrated logic modules: Ideal for status evaluations, e.g. "all windows closed".
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Group control: Long and extra-long key presses for advanced control commands.
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Dimmer and blind functions: Supports single and double button operation.
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Pulse and switching counter: Detects pulses from 30 ms, ideal for energy meters such as Eltako DSZ.
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Secure configuration:
- Galvanically isolated inputs for maximum safety and protection of the KNX bus.
- Extensive parameterization via ETS5 with debounce time, scene control, blocking objects and thresholds.
Technical details
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Entrances:
- Supports potential-free contacts as well as voltage inputs (12–24V AC/DC or 230V AC).
- Internal query voltage: 12V (with potential-free contacts).
- Maximum cable length: up to 100 m.
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Power consumption: Typically < 0.3 W, supplied via KNX bus.
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Operating environment:
- Operating temperature: 0 °C to +45 °C.
- Protection class: IP20 – suitable for dry indoor areas.
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Dimensions: DIN rail mounting device (2 modules to 12 modules, depending on the model).
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KNX compatibility: TP-256 interface, fully compatible with ETS5.
Applications
- Monitoring of door and window contacts for security and energy efficiency.
- Control of lighting, blinds and heating valves.
- Integration of push buttons and switches into KNX scenes.
- Use as a pulse counter for energy and consumption measuring devices.
Installation and integration
- Easy mounting on DIN rail (REG) for quick installation.
- Intuitive parameterization via ETS5.
- No separate power supply required – operation is via the KNX bus.
Product information
Manufacturer part number: BE-08000.02
Article number: SMH0259
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