1756-IB32 Allen-Bradley Digital Input Module for ControlLogic

1756-IB32 ControlLogix digital input module overview

The Allen-Bradley 1756-IB32 is a high-density 32-point digital input module engineered for use in ControlLogix programmable controller systems. Operating at 12/24V DC with sinking input type, this module is ideal for capturing signals from field devices like sensors and switches. It offers two isolated input groups with programmable filter times to accommodate various industrial needs. Its robust construction, low power consumption, and compliance with global EMC and safety standards make it a reliable choice for high-performance applications. Designed for seamless integration, the 1756-IB32 module enhances flexibility and input processing capacity within your control architecture.

Technical specifications

• Inputs: 32 (2 groups of 16).
• Voltage range: 10…31.2 V DC (nominal 24 V).
• Response time: up to 0.42 ms (filter configurable).
• Isolation: 250V between groups and backplane.
• Power consumption: 0.66 W @ 5.1V, 2 mA @ 24V.
• Max thermal dissipation: 21.1 BTU/hr.
• Inrush current: 250 mA.
• Input impedance: 5.67 kΩ.
• Removable Terminal Block: 1756-TBCH or 1756-TBS6H.
• Operating temperature: 0–60 °C.

Key benefits

• High input density – accommodates large signal volumes.
• Customizable response time – adapts to varying application demands.
• Strong EMC resilience – compliant with IEC, ATEX, and global standards.
• Modular structure – facilitates system expansion and maintenance.
• RTB compatibility – supports quick setup and minimized downtime.

Applications and usage scenarios of 1756-IB32

The 1756-IB32 module is commonly deployed in automation systems where numerous digital signals must be monitored: assembly lines, conveyors, batch process control, food & beverage operations, and infrastructure automation.

About the manufacturer – Allen-Bradley

Allen-Bradley, a brand of Rockwell Automation, is globally recognized for its industrial automation excellence. Their ControlLogix family delivers scalable, high-performance solutions for modern control systems. With long-lasting components, seamless software integration, and global support, Allen-Bradley ensures maximum productivity and system uptime.