Allen-Bradley 1746-IC16 16-Point Input Module

Allen-Bradley 1746-IC16 is a 16-point DC input module for the SLC 500 family, enabling the controller to read 16 discrete 24V DC field signals from sensors, pushbuttons, and other devices. Installed in a 1746 I/O rack, the module communicates with the Processor via the backplane, translating each field input into a logic state that the PLC can process. It uses a shared input common for wiring and typically mounts with a removable terminal block for easy field wiring. For addressing, these 16 points are presented as individual inputs to the CPU, with an octal labeling option available—an octal label kit is commonly included with 16-point input modules or obtainable separately if octal references are required. The 1746-IC16 is a direct replacement in SLC 500 installations and supports standard discrete input practices for automation tasks such as machine safety interlocks, photoelectric sensor networks, and limit switch monitoring. When upgrading or maintaining legacy SLC 500 systems, the 1746-IC16 provides a reliable, drop-in 16-channel input solution that matches the card format and mounting style of other 1746 I/O modules, helping preserve rack compatibility and wiring schemes within your control panel.