Product Overview

The Allen Bradley 1756-OB16E functions as a high-performance digital output module within the ControlLogix chassis. It provides 16 sourcing outputs divided into two isolated groups of eight. This module specializes in driving solenoids, actuators, and indicators while providing advanced electronic fusing to protect internal circuitry and connected loads from overcurrent conditions. We supply this unit as 100% Brand New, original factory stock to ensure maximum lifecycle reliability in your PLC architecture.

Technical Specifications

Engineering Advantages

• Integrated Electronic Fusing: The 1756-OB16E eliminates the need for external physical fuses. The module detects short circuits or overloads and shuts down the affected point automatically, preventing catastrophic damage to the backplane and reducing downtime.

• High-Density Sourcing: With 16 points in a single-slot footprint, this module optimizes rack space. The sourcing configuration (10–31.2V DC) aligns with standard industrial sensor and actuator logic.

• Rapid Signal Response: A consistent 1 ms delay time ensures high-speed execution for precision motion and valve control applications where timing jitter causes process variability.

• Simplified Maintenance: Onboard LEDs provide immediate diagnostics for module health, communication status, and individual I/O faults. This allows technicians to identify a tripped fuse at a glance without opening the cabinet.

FAQs

What is the benefit of "Electronic Fusing" compared to a standard 1756-OB16 module?

The 1756-OB16E includes internal circuitry that monitors current flow. If a fault occurs, the module disables the specific output to protect the hardware. The standard 1756-OB16 lacks this feature and requires external fusing to prevent module damage during a short circuit.

Can I reset the electronic fuse remotely?

Yes, you can reset the electronic fuse through the controller software (Studio 5000) or by cycling power to the module, provided you have cleared the underlying fault in the field wiring.

Does this module support "RIUP" (Removal and Insertion Under Power)?

Yes, like all ControlLogix I/O, the 1756-OB16E supports RIUP. This allows you to replace a module while the rest of the system remains operational, though you must follow proper safety protocols regarding field-side power.

What Removable Terminal Block (RTB) does this module require?

The 1756-OB16E requires a 20-pin RTB. Compatible models include the 1756-TBNH (depth-type cage clamp) and the 1756-TBSH (standard housing spring clamp). Note that the RTB is sold separately from the module.