Allen-Bradley is Rockwell Automation’s flagship brand for industrial control and automation—covering PLCs/PACs (ControlLogix 1756, CompactLogix 5069/1769, MicroLogix), legacy SLC-500 (1747) / PLC-5 spares, I/O modules (1746/1756), PanelView HMI, PowerFlex drives, industrial EtherNet/IP networking, and safety/IS options for harsh environments. Widely used in oil & gas, petrochemical, power, marine and manufacturing, Allen-Bradley hardware delivers high uptime, long lifecycle support, and smooth migration paths from legacy platforms to modern architectures.