Allen-Bradley 1771-IND 16-Point AC Input Module

The Allen-Bradley 1771-IND is a 16-point input module for the PLC-5 system that accepts 24V AC field signals, enabling sixteen discrete inputs to be read by the controller. As a member of the 1771 I/O family, it installs in a PLC-5 I/O chassis and is commonly wired with the 1771-WH field wiring arm to terminate field connections. The module provides sixteen input channels that relay real-time on/off status to the PLC-5 CPU, suitable for sensing devices such as limit switches, pushbuttons, and other 24V-powered sensors in industrial control panels. Designed specifically for PLC-5 architectures, the 1771-IND integrates with backplane I/O timing and addressing schemes used by PLC-5 controllers, delivering straightforward integration into existing automation projects that rely on 24V input signals.