Allen-Bradley 1768-L43 CompactLogix L43 Processor

The Allen-Bradley 1768-L43 CompactLogix L43 Processor is a mid-range PLC CPU that plugs into a 1768 backplane to deliver local control for small-to-moderate automation tasks. It provides 2 MB of memory for program and data storage and, when powered from 24 VDC, draws up to 1.3 A on the backplane for operation, with a maximum power draw of 31.1 W. This processor supports RS-232 serial communication for legacy device interfaces and works with the 1768 family I/O modules through the backplane, enabling compact, modular control systems. The 1768-L43 is part of the CompactLogix line and is a discontinued model within the 1768 series, reflecting its historical role in mid-range control projects; typical installations used Studio 5000/RSLogix 5000 software for programming. Shipping weight is listed at around 2 lb.