Allen-Bradley 1756-IB16 – digital input module

The Allen-Bradley 1756-IB16 is a digital input module designed for the ControlLogix automation platform. It provides 16 input channels for monitoring 24V DC signals from field devices such as sensors, switches and push buttons in industrial control systems.

The module enables reliable signal acquisition and fast data exchange with ControlLogix processors through the high-speed backplane bus. It is commonly used in automation systems where multiple digital input signals need to be monitored and processed by the PLC.

Technical overview:
• Series: ControlLogix
• Module type: Digital input module
• Number of inputs: 16 channels
• Input voltage: 24 V DC nominal
• Input voltage range: approx. 10–31.2 V DC
• Input current: approx. 2.5 mA per channel
• Isolation: electrical isolation between field wiring and backplane
• Backplane current: approx. 100 mA @ 5.1 V DC
• Input delay time: approx. 1 ms (on/off)
• Operating temperature: 0°C to +60°C
• Mounting: ControlLogix chassis

Typical applications:
• Industrial automation systems
• Machine control cabinets
• Sensor and switch signal monitoring
• Manufacturing and production lines
• PLC-based control systems

About the manufacturer:
Allen-Bradley, part of Rockwell Automation, is one of the world’s leading manufacturers of industrial automation equipment. The company develops PLC platforms, industrial communication networks, motion control systems and automation solutions used across manufacturing and process industries worldwide.