Allen-Bradley 1747-L524 SLC 500 Processor Unit

The Allen-Bradley 1747-L524 SLC 500 Processor Unit is the SLC 5/02 CPU module for the SLC 500 family, delivering 4K of battery-backed RAM for program and data and a built-in DH-485 RS-232 communications port for serial connectivity to HMIs and other controllers. It supports a single local I/O chassis with up to 30 I/O module slots, making it a compact, standalone controller for small automation tasks. Power requirements are 5V DC with a typical draw of 500 mA (and 24V DC at about 175 mA), aligning with standard SLC 500 backplane power. This processor is commonly programmed with RSLogix 500 and is suitable for discrete control and simple automation applications where a reliable, legacy PLC solution is appropriate.