Allen-Bradley 1747-L524 SLC 500 Processor Module

The Allen-Bradley 1747-L524 SLC 500 Processor Module is a 4K-instruction SLC 5/02 series controller that serves as the central processing unit for a 1747-style SLC 500 rack, identified by FRN 7 (7.4.1). It provides up to 4096 discrete inputs and 4096 discrete outputs, and programming is performed with RSLogix 500. On the communications side it supports DH-485 networking and includes an RS-232 interface for PC programming and data exchange. Typical performance features include a 4.8 ms/k program scan time (faster than the older 5/01 models), 2.4 µs bit execution for XIC operations, and a modest power draw specification of 90 mA at 5 V (0 mA at 24 V) with 1747-M1/M2 memory modules available for nonvolatile program backup. This processor is designed for modular installation in a 1747-compatible chassis and is widely used for straightforward machine control, conveyor or packaging line control, and other small-to-mid scale automation tasks that require reliable discrete I/O processing and simple, field-programmable logic via RSLogix 500.