Allen Bradley 1756-IB16I Digital Input Module

The AB 1756-IB16I is a 16-point digital input module for ControlLogix systems, featuring individually isolated inputs that support both sinking and sourcing configurations. Operating within a voltage range of 10–30V DC, this high-performance input module ensures flexible and noise-resistant signal acquisition in complex and high-density industrial environments.

With a 36-pin plug-in terminal and compact form factor, the 1756-IB16I is ideal for integrating a wide range of 12/24V DC field devices such as sensors, switches, and digital transmitters. Channel-to-channel isolation provides added protection and reduces cross-talk in electrically noisy applications.

Technical Specifications

Model: 1756IB16I
Series: ControlLogix
Type: Digital Input Module (Isolated)
Number of Inputs: 16
Input Voltage Range: 10–30V DC
Nominal Input Voltage: 12/24V DC
Input Type: Sink or Source (individually isolated channels)
Application: Discrete input monitoring, PLC signal acquisition

Electrical Specifications

Input Current (Typical): 10 mA at 24V DC
Channel Isolation: Individually isolated inputs
Nominal Input Impedance: Approx. 2.4 kΩ
Signal Delay (ON/OFF): 1 ms (typical)
Short-Circuit Protection: Not applicable (input-only module)
Backplane Current Load: ~120 mA @ 5V DC (typical)

Communication & Integration

Backplane Compatibility: ControlLogix chassis
Module Addressing: Auto-addressed via RSLogix 5000 / Studio 5000
Wiring Connection Type: 36-pin plug-in terminal block (sold separately)
Diagnostic Features: Input status, fault monitoring via controller

Mechanical Specifications

Width: 38.1 mm
Height: 300 mm
Depth: 111.25 mm
Mounting Type: Rack-mounted (ControlLogix chassis)
Connector Type: Removable terminal block (36-pin)
Slot Size: Single-slot module

Environmental Specifications

Operating Temperature: 0°C to 60°C
Storage Temperature: –40°C to +85°C
Humidity: 5% to 95% RH (non-condensing)
IP Rating: IP20 (control cabinet required)
Installation Environment: Industrial panel

Compliance & Certifications

CE Marked: Yes
UL / cUL Listed: Yes
RoHS Compliant: Yes
Standards: IEC 61131-2, EN 61010-2-201

Key Features & Benefits

✅ 16 Isolated Inputs: Each channel supports independent signal paths for enhanced reliability

✅ 12/24V DC Compatibility: Supports standard automation voltage levels

✅ Sinking or Sourcing Inputs: Flexible integration with a wide variety of sensors and devices

✅ Compact ControlLogix Format: Saves space in high-density I/O configurations

✅ Fast Response Time: 1 ms typical input delay ensures real-time system control

📦 Order the Allen Bradley 1756-IB16I from Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable Allen Bradley 1756-IB16I prices. Designed for scalable, high-integrity digital input handling, this isolated input module is the smart choice for advanced automation systems.

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Isolated precision. Integrated performance. — Drive Outlet Megastore