Allen-Bradley 1756-IR61 Isolated Analog Input Module

The Allen-Bradley 1756-IR61 Isolated Analog Input Module provides galvanically isolated analog inputs for Rockwell Automation ControlLogix and CompactLogix systems. Designed to plug into a 1756 backplane, it accepts sensor signals from field devices and converts them to digital measurements for the PLC, while maintaining isolation to protect the controller from transients and common-mode noise. This module is part of Allen-Bradley’s 1756 I/O family and carries procurement identifier P-96490271 for precise ordering and documentation. In typical industrial automation setups, isolated analog input modules like the IR61 enable reliable data acquisition from sensors such as temperature transducers, pressure transmitters, and voltage or current output devices, by minimizing ground loop and electrical interference and by supporting consistent timing and polling with PLC logic within an integrated Rockwell ecosystem.