Allen Bradley 1756-IB32 Digital Input Module

The AB 1756-IB32 is a high-density 32-channel digital input module for ControlLogix systems, designed to monitor 12/24V DC sink-type signals. It offers fast response times, compact form factor, and reliable operation for a wide range of industrial control applications.

With support for up to 32 digital inputs in a single slot and a 36-pin connector interface, the 1756-IB32 is ideal for machine-level sensing, panel space optimization, and high-input-count applications. Integration with Studio 5000 provides easy configuration, diagnostics, and monitoring.

Technical Specifications

Model: 1756IB32
Series: ControlLogix
Type: Digital Input Module
Channels: 32 digital inputs
Input Type: Sink (negative logic)
Input Voltage Range: 10…31.2 V DC (nominal 24V DC)
Mounting: Chassis slot – standard ControlLogix rack
Connection Type: Plug-in terminal (36-pin)

Electrical Specifications

Nominal Input Voltage: 24V DC
Input Current at Signal High (1): 2 mA per channel
Input Threshold (ON): ≥10 V DC
Input Threshold (OFF): ≤5 V DC
Signal Delay (Rise/Fall): 0.38 ms to 18 ms configurable
Backplane Current Draw:
• 5.1V DC @ 120 mA
• 24V DC @ 90 mA
Power Dissipation: Approx. 3.2 W
Heat Dissipation: Approx. 10.9 BTU/hr
Isolation Voltage: 250V continuous (field to backplane), basic insulation
Short-Circuit Protection: Not available (external protection required)

Network & Interface Specifications

System Integration:

• Backplane Communication: Standard ControlLogix
• Diagnostics: Point-level status and fault monitoring
• Configuration Software: Studio 5000 Logix Designer

Supported Protocols:
Communicates via backplane only (not a network module)

I/O Expansion: Compatible with all ControlLogix I/O combinations

Mechanical Specifications

Width: 38.1 mm
Height: 300 mm
Depth: 111.25 mm
Mounting Orientation: Vertical slot installation
Enclosure Type: Open-type for control cabinet use
Terminal Block: 36-pin removable plug-in connector
Weight: Approx. 0.4 kg

Environmental Specifications

Operating Temperature: 0…60 °C
Storage Temperature: –40…85 °C
Relative Humidity: 5% to 95% non-condensing
Shock Rating: 30 g operating, 50 g non-operating
Vibration Resistance: 2 g @ 10–500 Hz
Pollution Degree: 2
Certifications: Suitable for Class I Div 2 hazardous locations

Compliance & Certifications

Certifications: UL, c-UL, CE, RoHS
SIL/PL Rating: Not rated
Explosion Safety (Gas/Dust): None
EMC Compliance: EN 61000-6-2 / 6-4
Standards Met: EN 61131-2
Functional Safety: Not applicable

Key Features & Benefits

✅ 32 DC Sink Inputs – Monitor high-density input signals using a single module

✅ Fast Response Times – Configurable signal change delay from 0.38 to 18 ms

✅ Compact 38.1 mm Width – Saves valuable rack space in high I/O applications

✅ Studio 5000 Integration – Simplifies setup, monitoring, and diagnostics

✅ Standard 36-Pin Connector – Efficient wiring and quick terminal access

📦 Order the Allen Bradley 1756-IB32 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1756-IB32 prices. This 32-point digital input module is trusted for high-density, reliable signal monitoring—available now with expert support and fast UK delivery.

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Drive Outlet Megastore – your trusted source for Allen Bradley ControlLogix I/O modules and industrial automation components.