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Product information
Specifications

Allen-Bradley 1756-IB16

Introduction: The Allen-Bradley 1756-IB16 ControlLogix Digital Input Module is a premium industrial signal processing element engineered and manufactured 100% in the United States (US) by Rockwell Automation. Functioning within high-tier ControlLogix integrated process loops, this discrete input card acts as the system's "sensory threshold." It continuously intercepts external binary status sequences (ON/OFF) from plant floor mechanisms and converts raw voltage transitions into clean data matrices transmitted seamlessly across the chassis backplane bus to central logix controllers.

The 1756-IB16 variant scales system density with a 16-point digital input layout, operating across an extended direct-current input window spanning 0 to 31V DC (with a nominal utility target of 24V DC). Equipped with intelligent, user-configurable digital input filtering algorithms, the device completely suppresses contact bounce noise or ambient electromagnetic field waves (EMI) to lock down faultless data metrics. Furthermore, heavy galvanic optical isolation barriers separate field wiring paths from sensitive internal backplane logic, securing high defense parameters against stray electrical surges. Complete with localized per-channel status LED indicators and supporting full Removal and Insertion Under Power (RIUP), field technicians can safely hot-swap worn tracking modules without needing to pull down line power or disrupt active factory processes.

Key Features & Technical Specifications:

Manufacturer: Allen-Bradley / Rockwell Automation
Product Series: ControlLogix Digital I/O Modules Hardware Family
Model Code: 1756-IB16
Device Type: DC Discrete / Digital Input System Module
Input Points Capacity: 16 independent input channels (16 points).
Operating Voltage Range: 0 to 31V DC nominal capability (engineered for sink/source wiring topologies).
Signal Filter Configuration: Programmable hardware debounce timings for Off-to-On and On-to-Off transitions to clean up dirty process inputs.
Onboard Diagnostic Arrays: Front-panel LED display matrix indexing global module health status (OK) alongside individual digital I/O channel states.
Mechanical Integration: Slide-in modular form factor matching standard 1756 chassis racks; field connections interface via a separate Removable Terminal Block housing assembly (RTB, such as 1756-TBCH or 1756-TBNH, sold separately).
Country of Origin: 100% Made in the United States.