Allen-Bradley 1747-L551 SLC 5/01 Processor Module

The Allen-Bradley 1747-L551 SLC 5/01 Processor Module is a compact programmable logic controller (PLC) processor for SLC 500 automation systems, delivering 16K words of memory for local control and supporting DH-485 serial communications with SLC 500 I/O modules. This chassis-mounted processor is designed for small to medium machine-control tasks, compatible with RSLogix 500 programming software and operating from 0°C to 60°C. Typical applications include stand-alone machine control, manufacturing production lines, packaging machinery, conveyor systems, and material handling equipment, and it serves as a direct replacement or upgrade for older SLC 500 processors; common replacements include Allen-Bradley 1747-L552 and 1747-L553.