The Allen-Bradley 1754-L28BBB is a robust safety controller, part of the esteemed GuardPLC 1200 Control System series, featuring 28 I/O configurations. Engineered to meet stringent IEC 61508 (SIL 3) and ISO 13849-1 (PLe/Cat. 4) standards, this controller boasts a fail-safe CPU designed to promptly detect and address faults impacting safety functions within programmed safety times. It efficiently manages 20 digital inputs, 8 digital outputs, and 2 high-speed counters, and supports seamless communication and programming via an RS-232 serial port and an Ethernet port, while a front panel offers real-time status insight through signaling lamps, all powered by a dependable 24 Volts DC supply.
