The Allen-Bradley 1747-L542 is a powerful processor that is compatible with the SLC 500 programmable controller system. The 1747-L542 is one specifically in the family of SLC 5/04 processors. These SLC processors offer a wide range of I/O channels, memory, ports, and instruction sets to facilitate meeting the exact needs of a given application.
The SLC 5/04 processors let you select a memory capacity of 16K, 32K, or 64K words. The 1747-L542 itself has up to 32K memory, 4096 ports, and 30 I/O module slots. Additionally, the processor has standard battery-backed RAM with backup flash memory to protect your data.