Allen-Bradley 1746-HT SLC 500 IO Module

The Allen-Bradley 1746-HT SLC 500 IO Module is a single-slot I/O module for the SLC 500 family that installs into a 1746 I/O rack and communicates through the 1746-HT I/O connection, paired with the 1746-HCA for connectivity. It occupies one chassis slot and draws power from the backplane, with specified backplane currents of 200 mA at 5 V and 90 mA at 24 V, helping you plan power budgeting in the cabinet. This module is part of the 1746-series I/O lineup and is designed to integrate with Allen-Bradley RSLogix 500 programming workflows, using standard 1746 addressing to read or write I/O data. When planning a retrofit or expansion, verify compatibility with your processor and rack as well as the 1746-HT/HCA cabling requirements to ensure proper operation. The 1746-HT serves as a component within the SLC-500 I/O ecosystem, enabling modular expansion in legacy control systems while maintaining consistent backplane interfacing and configuration through the familiar 1746 module paradigm.