The Allen‑Bradley 1771‑IAD is a discrete input module from the PLC‑5 series designed for flexible operation with both 120 VAC and 125 VDC signals. Featuring 16 input channels, it’s ideal for monitoring a range of industrial input devices. This module is compatible with various chassis types including 1771‑A1B through A4B, as well as AM1 and AM2. The 1771‑IAD converts incoming AC or DC signals into logic-level inputs for the processor, providing reliable and isolated signal processing. Designed for high-performance automation systems, this module is a dependable solution for mixed-voltage input environments. Manufacturer Rockwell Automation Brand Allen‑Bradley Part Number 1771‑IAD Product Type Discrete Input Module Series PLC‑5 / 1771 Bulletin Number of Inputs 16 Channels Input Voltage 120 VAC / 125 VDC Input Type AC/DC Discrete Compatible Chassis 1771‑A1B, A2B, A3B, A3B1, A4B, AM1, AM2 Mounting Rack‑Mountable Status Active / Legacy Support
