Allen-Bradley 1746-A13 SLC 500 Analog Input Module

The Allen-Bradley 1746-A13 is a 13-slot modular backplane chassis for the SLC 500 family, designed to house a processor, power supply, and a wide range of I/O modules in a single enclosure. As part of the 1746 SLC system, it provides 13 backplane slots to accept digital, analog, and specialty I/O modules, enabling scalable configurations for small to mid-size automation projects. The chassis supports use in both modular SLC 500 configurations and fixed-system expansion backplanes, offering flexible mounting within the 13-slot footprint. In typical setups, the leftmost slot is commonly used for the processor, with the remaining slots allocated to I/O and support modules, forming a compact, centralized control rack.