Allen-Bradley 1756-L64 ControlLogix Processor

Allen-Bradley 1756-L64 ControlLogix Processor (Logix5564) is a high-performance central processing unit for Rockwell Automation's ControlLogix control architecture. It delivers 16 MB of user memory and 478 KB of I/O memory, supporting sizeable program logic and data trees within a single controller housed in an 1756 backplane rack. In a typical ControlLogix installation, the L64 acts as the rack's brain, coordinating execution across connected I/O modules and any networking interfaces supported by the ControlLogix system to deliver deterministic, real-time control for multiple automation tasks. The 5564-family processor is well-suited to large-scale manufacturing automation, material handling systems, and complex process lines that require substantial on-board memory and fast, predictable update cycles for I/O and tag data. With its substantial memory footprint and proven reliability, the 1756-L64 provides a scalable foundation for expanding control schemes, data logging, and inter-controller communication within established Rockwell Automation ecosystems.