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: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.