Product Details
Overview
The Allen-Bradley 1756-OB16D is a high-performance diagnostic DC output module from the ControlLogix family. Designed to provide precise control and advanced diagnostics for 24V DC sourcing outputs, this module supports up to 16 output points with detailed fault detection capabilities. It enhances system reliability by monitoring conditions such as no-load, output verification, and fault-state behavior, making it an essential component in modern industrial automation systems.
Technical Specifications
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Model / Catalog Number: 1756-OB16D
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Brand: Allen-Bradley
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Manufacturer: Rockwell Automation
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Product Line: ControlLogix
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Product Type: Diagnostic DC Output Module
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Number of Outputs: 16 individually monitored channels
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Output Type: DC Source (Sourcing)
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Nominal Voltage: 24V DC
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Operating Voltage Range: 19.2–30V DC
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Maximum Output Current (per point): 2 A @ 30°C (86°F)
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Maximum Output Current (per module): 8 A @ 30°C, 4 A @ 60°C
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Power Dissipation (max): 3.3 W @ 60°C (140°F)
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Backplane Current:
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5V DC: 250 mA
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24V DC: 140 mA
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Isolation Voltage: 50V continuous (basic insulation, output-to-backplane)
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Diagnostic Functions: Output verification, fault-state monitoring, open-load detection, short-circuit sensing
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Compatible Terminal Blocks: 1756-TBCH, 1756-TBS6H (removable)
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Enclosure Type: Open-style (ControlLogix chassis installation)
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Weight: 0.56 lbs (0.26 kg)
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Operating Temperature: 0°C to +60°C (32°F to +140°F)
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Storage Temperature: -40°C to +85°C (-40°F to +185°F)
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Humidity: 5–95% non-condensing
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Vibration: 10–500 Hz @ 2 g peak
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Shock: 30 g operating, 50 g non-operating
Key Features
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Built-in output diagnostics for predictive maintenance and rapid fault identification
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16 high-density sourcing outputs with configurable status reporting
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Supports real-time output verification and no-load detection
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Compact design for ControlLogix chassis with minimal power consumption
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Wide voltage tolerance for use in diverse DC control applications
Applications
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Motor and actuator control in factory automation systems
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Machine safety and motion applications requiring diagnostic feedback
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Real-time monitoring and control in distributed I/O environments
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Energy-efficient industrial systems with advanced fault tracking
FAQs
Q1: What makes the 1756-OB16D different from standard output modules?
Unlike standard DC output modules, the 1756-OB16D includes diagnostics for detecting open circuits, output verification, and short-circuit conditions, providing detailed system health data.
Q2: Which terminal blocks are compatible with this module?
It supports both 1756-TBCH (cage clamp) and 1756-TBS6H (spring clamp) terminal blocks.
Q3: Can the 1756-OB16D be used in high-temperature control cabinets?
Yes. It performs reliably up to 60°C (140°F), making it suitable for industrial control environments.
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.