Allen-Bradley 1746-IA16 16-Channel Input Module

The Allen-Bradley 1746-IA16 is a 16-channel AC digital input module designed for the SLC 500 PLC family and sold here without a cover. It provides 16 discrete input points for reading AC-powered signal states from sensors such as pushbuttons and switches, interfacing with an SLC 500 backplane to feed the processor with real-time input data. This module slots into a 1746 I/O rack and communicates over the backplane with the corresponding controller, enabling straightforward programming in the standard AB software and reliable monitoring of industrial I/O. The IA16 is specified for 120 VAC input signals across its 16 channels, making it suitable for common plant automation tasks that use line-powered devices. As a digital input module within the SLC 500 family, it supports the same wiring, diagnostic, and maintenance workflows as other 1746 I/O modules, and is typically used in applications such as machine control, interlocks, and status indication in compact control panels. When integrating this module, ensure it is deployed in a compatible SLC 500 rack with proper wiring practices and consider any required terminal blocks or mounting accessories per your system design.