MDT Binary Input – Intelligent status monitoring for KNX systems
The MDT binary input is a highly flexible component for integrating and monitoring states in modern KNX building automation systems . With up to 32 inputs and a choice of potential-free or live versions (12–24V AC/DC or 230V AC), it offers maximum flexibility for connecting pushbuttons, switches, window contacts, or sensors. Its precise detection, robust design, and diverse logic functions make it the ideal choice for complex KNX installations.
Key features
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Numerous variations:
- Available as a 4-, 8-, 16- or 32-speed model.
- Compatible with potential-free contacts or voltage inputs (12–24V AC/DC, 230V AC).
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Advanced features:
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Multi-tap function – transmission of up to four values/data point types (DPTs) per input.
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Group control via long and extra-long key presses.
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Four integrated logic modules for state evaluation, e.g. "all windows closed".
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Pulse and switching counters (pulses from 30 ms) for energy meters such as Eltako DSZ.
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Individual configuration options:
- Configurable debounce times , thresholds and scene controls .
- Support for blocking objects as well as dimmer and blind functions.
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Safe and reliable: Galvanically isolated inputs protect the KNX bus and connected devices from voltage flashovers.
Technical details
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Entrances:
- Supports 12–24 V AC/DC, 230 V AC or potential-free contacts.
- Internal query voltage: 12 V (for potential-free inputs).
- Maximum cable length: 100 m.
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Power consumption: Typical consumption < 0.3 W via the KNX bus.
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Operating environment:
- Temperature range: 0 °C – +45 °C.
- Protection class: IP 20 – suitable for dry indoor areas.
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Dimensions: DIN rail mounting device with 2 to 12 modules (depending on the model).
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KNX interface: TP-256, fully ETS5 compatible.
Application areas
- Monitoring of door and window contacts for security and energy efficiency.
- Integration of conventional push buttons and switches into KNX scenes.
- Control of lighting, blinds and heating valves.
- Energy and consumption monitoring through use as a pulse counter.
Easy installation and integration
- Mounting directly on the DIN rail (REG) for quick and secure installation.
- Intuitive parameterization via ETS5 with extensive setting options.
- No external power supply required – power is supplied via the KNX bus.
Product information
Manufacturer part number: BE-08230.02
Article number: SMH0260
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