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Allen-Bradley 1756-OB16D Digital Output Module for ControlLogix Systems

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Allen-Bradley 1756-OB16D

by Allen-Bradley

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OverviewThe Allen-Bradley 1756-OB16D stands as an advanced 16-point DC digital output module, meticulously designed for fluid integration within ControlLogix platforms. Operating within a 19.2 to 30V DC range, this module utilizes sourcing-type outputs, ensuring robust command capabilities across diverse industrial use cases. A notable attribute of the 1756-OB16D is its innovative point-level diagnostics. This feature facilitates real-time detection of critical output malfunctions, including short circuits, open loads, and other field device irregularities. By offering immediate and precise fault identification, this module significantly boosts system visibility, substantially shortens troubleshooting durations, and ultimately elevates overall operational efficiency and continuity.Crafted for adaptability and straightforward maintenance, the 1756-OB16D is fully compatible with either the 1756-TBCH or 1756-TBS6H removable terminal blocks (available separately), enabling swift and secure wiring. Moreover, its full compatibility with Studio 5000 Logix Designer guarantees effortless setup, live monitoring of output conditions, and comprehensive governance over your automation processes. This hot-swappable module also minimizes operational interruptions by permitting replacements without necessitating a complete system shutdown, making it an essential element for modern industrial environments demanding continuous operation.Key Features 16 Sourcing DC Outputs: Delivers dependable control for 12/24V DC applications with a maximum output current of 1.0 A per channel. Advanced Point-Level Diagnostics: Instantly identifies open circuits, short circuits, and other field device issues, simplifying problem resolution. Broad Operating Voltage Range: Functions effectively within a 19.2–30V DC range, accommodating varied control system requirements. High-Density, Compact Form Factor: Optimizes control panel space while maintaining strong performance and dependability. Channel Status LEDs: Provides clear, individual visual indications of output status and fault conditions for rapid assessment. Hot-Swappable Module: Enables component replacement without system interruption, ensuring continuous operation and minimal downtime. Seamless Studio 5000 Integration: Offers complete compatibility for easy configuration, extensive monitoring, and precise control. Technical Specifications Catalog Number: 1756-OB16D Number of Outputs: 16 Voltage Category: 12/24V DC sourcing Operating Voltage Range: 19.2–30V DC Output Current per Channel: 1.0 A max Total Current per Module: 8.0 A max Backplane Current: ~180 mA @ 5.1V DC Connector Type: 36-pin RTB (sold separately) Protection: Electronic with diagnostics Isolation Voltage: 250V continuous Operating Temperature: 0°C to +60°C Mounting: ControlLogix chassis Compatible Terminal Blocks: 1756-TBCH or 1756-TBS6H Applications Discrete Output with Real-time Diagnostics: Perfect for systems demanding immediate fault detection and isolation, boosting reliability. Material Handling and Conveyor Systems: Improves system uptime and efficiency through proactive fault identification and reduced maintenance. Automotive & Packaging Equipment: Provides precise and protected output switching for critical high-speed operations. Predictive Maintenance Systems: Supports advanced reliability strategies by furnishing critical diagnostic data for proactive issue resolution. Process Control and Automation: Ensures stable and monitored output control for a wide array of industrial processes. Robotics and Motion Control: Delivers reliable and diagnostic-enabled output for complex robotic systems, minimizing operational interruptions. Why Choose This Model?Unmatched Fault Isolation: The integrated point-level diagnostics provide superior fault isolation, identifying problems swiftly and accurately.Enhanced System Uptime: Hot-swappable functionality and rapid troubleshooting features significantly reduce downtime, ensuring your operations remain continuous.Seamless ControlLogix Integration: Experience effortless setup, monitoring, and control within your existing ControlLogix architecture.Order NowElevate your industrial automation capabilities with the Allen-Bradley 1756-OB16D Digital Output Module. Contact Palm Parts Solution today to place your order or request a quote.FAQWhat is the primary function of the Allen-Bradley 1756-OB16D?The 1756-OB16D is a digital output module designed to provide 16 sourcing DC outputs for ControlLogix systems, featuring advanced diagnostics for improved system reliability and efficiency.What kind of diagnostics does the 1756-OB16D offer?It provides innovative point-level diagnostics, capable of detecting output faults such as short circuits, open loads, and other field device anomalies in real time.Is this module compatible with existing ControlLogix systems?Yes, it is specifically engineered for seamless integration with ControlLogix systems and offers full compatibility with Studio 5000 Logix Designer for easy configuration and monitoring.Can the 1756-OB16D be replaced without shutting down the system?Absolutely. This module is hot-swappable, allowing for replacements without requiring a full system shutdown, thereby minimizing downtime in continuously operating industrial environments.What terminal blocks are compatible with the 1756-OB16D?The module is compatible with either the 1756-TBCH or 1756-TBS6H removable terminal blocks, which are sold separately.

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PRODUCT DETAILS

Allen-Bradley 1756-OB16D

Overview

This is a genuine Allen-Bradley component from the ControlLogix family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem
  • Engineered to integrate inside ControlLogix installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the ControlLogix family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Catalog Number: 1756-OB16D
  • Number of Outputs: 16
  • Voltage Category: 12/24V DC sourcing
  • Operating Voltage Range: 19.2–30V DC
  • Output Current per Channel: 1.0 A max
  • Total Current per Module: 8.0 A max
  • Backplane Current: ~180 mA @ 5.1V DC
  • Connector Type: 36-pin RTB (sold separately)
  • Protection: Electronic with diagnostics
  • Isolation Voltage: 250V continuous
  • Operating Temperature: 0°C to +60°C
  • Mounting: ControlLogix chassis
  • Compatible Terminal Blocks: 1756-TBCH or 1756-TBS6H

Applications

  • Discrete Output with Real-time Diagnostics: Perfect for systems demanding immediate fault detection and isolation, boosting reliability.
  • Material Handling and Conveyor Systems: Improves system uptime and efficiency through proactive fault identification and reduced maintenance.
  • Automotive & Packaging Equipment: Provides precise and protected output switching for critical high-speed operations.
  • Predictive Maintenance Systems: Supports advanced reliability strategies by furnishing critical diagnostic data for proactive issue resolution.
  • Process Control and Automation: Ensures stable and monitored output control for a wide array of industrial processes.
  • Robotics and Motion Control: Delivers reliable and diagnostic-enabled output for complex robotic systems, minimizing operational interruptions.

Why Choose the 1756-OB16D?

Unmatched Fault Isolation: The integrated point-level diagnostics provide superior fault isolation, identifying problems swiftly and accurately.

Enhanced System Uptime: Hot-swappable functionality and rapid troubleshooting features significantly reduce downtime, ensuring your operations remain continuous.

Seamless ControlLogix Integration: Experience effortless setup, monitoring, and control within your existing ControlLogix architecture.

Availability & Shipping

  • In stock: 1756-OB16D ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1756-OB16D ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1756-OB16D is a digital output module designed to provide 16 sourcing DC outputs for ControlLogix systems, featuring advanced diagnostics for improved system reliability and efficiency.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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