Product Details
Description
The DO840 module provides 16 current-sourcing 24 V DC outputs for actuators such as solenoids, relays, and lamps. It supports redundant operation for uninterrupted control and includes diagnostics for short- and open-circuit detection, ensuring reliability in critical oil, gas, and power applications.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: DO840
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Order Number: 3BSE020838R1
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Product Series: S800 I/O
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Number of Channels: 16 (Sourcing)
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Nominal Voltage: 24 V DC
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Maximum Output Current: 0.5 A per channel
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Approximate Weight: 0.28 kg
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Redundancy: Supported (Dual module configuration)
Features
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Redundancy Capability: Designed for high-availability architectures to prevent single points of failure in control loops.
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Comprehensive Diagnostics: Real-time monitoring of field wiring integrity, including short-circuit and open-circuit fault detection.
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Galvanic Isolation: Group-wise isolation protects the internal system logic from field-side electrical interference and surges.
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Enhanced Maintenance: Supports hot-swappable replacement, allowing technicians to swap modules without interrupting the process or disconnecting power.
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Front Panel Indicators: Integrated LEDs provide immediate status updates for each channel, power health, and fault conditions.
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
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.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.
Mastering Modern Industrial Joystick Controls in Heavy Automation
Industrial joysticks play a pivotal role in human-machine interaction across heavy material handling and mobile hydraulics. These tactile controllers translate complex operator movements into precise electrical signals for PLCs, motion controllers, and DCS networks. Consequently, selecting and installing the right joystick architecture ensures operator safety, reduces fatigue, and optimizes equipment performance.