B&R 8AC120 Digital Input Module for Automation Systems

The B&R 8AC120 Digital Input Module serves as a critical component for industrial automation setups requiring precise signal acquisition. Designed for 24V DC systems, this compact module handles six digital input channels with exceptional reliability. Engineers commonly deploy it in control cabinets where fast data processing and minimal downtime are essential for production continuity.

Manufacturers across automotive and chemical processing sectors frequently pair this module with B&R’s Automation Studio environment. Its modular design simplifies replacement during unplanned outages – a technician from a German packaging plant once mentioned they completed a field swap in under 90 seconds during a critical production run. Common applications include:

• Conveyor system monitoring
• Packaging machine status tracking
• Process valve position verification
• Emergency stop circuit integration

Technical Advantages

While basic in function, the 8AC120’s engineering delivers tangible benefits:

• Diagnostic LEDs provide immediate fault identification
• Plug-in terminal blocks enable tool-less wiring
• Backplane communication redundancy ensures signal integrity
• Thermal resistance maintains accuracy between -25°C to +60°C

When integrated with B&R’s APROL DCS or X20 system architecture, this module forms part of a scalable solution that supports hot-swapping and online configuration changes. Its electromagnetic compatibility (EMC) meets industrial immunity standards per IEC 61000-6-2.