Product Details
Description
The DI840 3BSE020836R1 is a 16-channel input module designed for high-availability control. It supports 1:1 redundancy via a redundant MTU and includes SOE functionality for precise event time-stamping. With advanced diagnostics and robust design, it ensures reliable signal detection in safety-critical and continuous process applications.
Specifications
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Manufacturer: ABB
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Country of Origin: Switzerland
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Model Number: DI840 (3BSE020836R1)
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Product Type: Digital Input Module (Redundant)
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Number of Channels: 16
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Rated Input Voltage: 24 V DC
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Input Voltage Range: 15 to 30 V DC
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SOE Support: High-resolution time-stamping (1 ms)
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Redundancy: Supported (Requires redundant MTU)
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Isolation: Galvanic isolation to the system
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Power Supply: 24 V DC (via ModuleBus)
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Weight: 0.20 kg
Features
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High Availability Support: Fully compatible with redundant I/O architectures to prevent single points of failure in the signal path.
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Sequence of Events (SOE): Provides 1 ms resolution for event logging, essential for post-trip analysis and precision process timing.
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Intelligent Diagnostics: Continuous self-supervision identifies internal hardware faults and reports status to the central controller.
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Compact High-Density Design: Packs 16 redundant channels into a small footprint to maximize enclosure efficiency.
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Hot-Swap Performance: Supports live replacement under power, enabling maintenance without disrupting the active process control loop.
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Field Signal Integrity: Integrated filters and current-limiting circuits safeguard against electromagnetic noise and field-side transients.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.