Allen-Bradley 1764-LSP MicroLogix 1500 Processor Unit

The Allen-Bradley 1764-LSP MicroLogix 1500 Standard Processor Unit is the detachable processor module for the MicroLogix 1500 family, designed to snap into a MicroLogix 1500 base unit and be replaced without rewiring the I/O. It provides 7K words of user memory for programs and data and includes a single RS-232 serial port for DF1/DH-485 communications with a PC or HMI; RSLogix 500 programming software, Version 5.10.00 or higher, is required. This Series A processor (carefully noted as Series A, with Series C or higher revisions supported) expects firmware revision 6 or higher and supports the appropriate RSLogix 500 tools for programming. It is intended for use with MicroLogix 1500 base units (such as 1764-24AWA or 1764-24BWA), enabling a modular control system where the processor can be swapped or upgraded independently of the I/O wiring. The unit sits alongside other MicroLogix 1500 components—base units, expansion I/O options, and accessories—providing a compact, scalable solution for small to mid‑size automation tasks.