Allen-Bradley 1771-IQ16 16-Point Analog Input Module

Allen-Bradley 1771-IQ16 is a 16-point isolated digital input module for Allen-Bradley 1771 I/O systems, designed to accept 24V DC input signals from field devices. Each channel is isolated to protect the controller from voltage transients and ground differences, enabling reliable reading of switches, sensors, and other 24VDC circuitry in industrial environments. The module plugs into a compatible 1771 I/O chassis and is used to convert multiple 24V DC signals into the PLC input word for processing. Typical applications include machine safety interlocks, discrete sensor networks, and remote I/O monitoring in manufacturing lines.