Allen-Bradley 1746-LA16 Sixteen-Channel IO Module

The Allen-Bradley 1746-LA16 is a sixteen-channel I/O module in the Rockwell Automation 1746 SLC I/O family, designed to extend an SLC 500 controller’s backplane I/O capacity. It installs in a compatible 1746 backplane chassis and provides sixteen independent I/O points that synchronize with the processor over the standard 1746 backplane interface. As part of the legacy 1746 I/O lineup, the LA16 enables scalable expansion of discrete input/output across a single module, making it suitable for retrofits and incremental upgrades in automation systems that still rely on SLC 500 hardware. Typical applications include factory automation tasks such as equipment monitoring, actuator control, and line-side signaling where additional channels are needed without replacing the controller. With Rockwell Automation’s long-standing 1746 ecosystem, the LA16 benefits from broad support, availability through authorized distributors, and documented installation practices for reliable field integration.