Allen-Bradley 1791-8BC Block I Module 24V DC Input is a digital input module in the 1791 Modular I/O system that provides 24V DC input signals to a controller. It is designed to monitor 24V DC devices such as sensors and switches, converting external signals into PLC-ready inputs. As part of the Block I configuration, it integrates with compatible 1791 chassis to expand a controller’s digital input capabilities.
