Allen-Bradley 1756-OB16DK | ControlLogix 16-Point DC Output Module with Diagnostics (Conformal Coated)

Overview

The Allen-Bradley 1756-OB16DK is a 16-channel DC digital output module for ControlLogix systems, featuring sourcing outputs, point-level diagnostics, and a conformal coating for added protection in harsh environments. Operating at 19–30V DC, this module is ideal for industrial applications that require high reliability, environmental resistance, and real-time fault monitoring.

Each channel delivers up to 1.0 A, and the built-in field-side diagnostics simplify troubleshooting while enhancing system visibility. Its conformal coating guards against dust, moisture, and corrosive atmospheres.

Key Features

• 16 Sourcing DC Outputs – For 19–30V DC operation

• Field-Side Diagnostics – Detect open circuits, shorts, and overloads

• 1.0 A Output per Channel – Handles high-demand field devices

• Conformally Coated – Extra protection for harsh industrial environments

• Channel Status LEDs – Visual indicators for output and fault status

• Hot-Swappable Design – Replace without shutting down your system

• Compatible Terminal Blocks: 1756-TBCH or 1756-TBS6H

• Studio 5000 Integration – Full programming and monitoring support

Technical Specifications

• Catalog Number: 1756-OB16DK

• Number of Outputs: 16 sourcing

• Voltage Range: 19–30V DC

• Output Current per Channel: 1.0 A max

• Total Current per Module: 8.0 A max

• Protection: Field-side diagnostics with conformal coating

• Isolation Voltage: 250V continuous

• Backplane Current: ~180 mA @ 5.1V DC

• Connector: 36-pin RTB (sold separately)

• Operating Temperature: 0°C to +60°C

• Mounting: ControlLogix chassis

Applications

• Harsh Industrial Environments – Conformal coating protects against contaminants

• Predictive Maintenance – Real-time diagnostics at the point level

• Material Handling and Machine Automation

• OEM Systems Requiring Robust Output Modules

Why Choose the 1756-OB16DK?

• Reliable DC outputs with fault diagnostics per channel

• Enhanced environmental protection with conformal coating

• Designed for demanding ControlLogix installations

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