Allen-Bradley 1756-OB16D ControlLogix 16-Point Diagnostic Output Module

Allen-Bradley 1756-OB16D ControlLogix 16-Point 24V DC Diagnostic Output Module

Availability: 1 left in stock

The Allen-Bradley 1756-OB16D is a high-performance diagnostic digital output module designed for the ControlLogix platform. This module provides 16 points...

SKU: 1756-OB16D

Manufacturer: Allen-Bradley
Product No.: 1756-OB16D
Product Type: Digital Output Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Allen-Bradley 1756-OB16D is a high-performance diagnostic digital output module designed for the ControlLogix platform. This module provides 16 points of 24V DC source output, specifically engineered for applications requiring reliable diagnostic monitoring to identify field-side faults such as open-wire or short-circuit conditions.

Features

16-point diagnostic output capability for advanced system monitoring.
24V DC source output configuration.
Comprehensive diagnostic feedback to detect output status and field wiring integrity.
Integrated power dissipation management for reliable operation in industrial environments.
Direct compatibility with the ControlLogix backplane for seamless integration.

Technical Specifications

Module Type	Diagnostic Digital Output
Operating Voltage Range	19.2 to 30V DC
Backplane Current (5V)	250 mA
Backplane Current (24V)	140 mA
Max Power Dissipation	3.3 Watts at 60 degC
Max Output Current (per point)	2 Amps
Number of Points	16

Installation Guidelines

Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-OB16D module to prevent electrical damage.
Verify that the module is fully seated in the chassis slot and secured using the top and bottom latching mechanisms.
Use appropriate shielded cabling for field wiring to minimize electromagnetic interference (EMI) in high-noise industrial environments.
Maintain proper ventilation in the control cabinet to ensure ambient temperatures remain within the specified operating range.
Always adhere to local electrical codes and grounding practices when connecting field devices to the module terminals.

FAQ

What is the primary function of the diagnostic feature on this module?
The diagnostic feature allows the controller to detect specific fault conditions such as load loss, short circuits, or open-wire scenarios, providing real-time feedback to the PLC program for enhanced troubleshooting.

Can I use this module in any ControlLogix chassis?
Yes, the 1756-OB16D is compatible with standard Allen-Bradley ControlLogix I/O chassis, provided the chassis has sufficient power supply capacity for the module's backplane current requirements.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.