The Allen-Bradley 1747-L543 is one of the powerful processors from the SLC 500 product family. The 1747-L543 processor is flexible, offering a wide range of I/O channels, memory, ports, and instruction sets. This facilitates meeting the exact needs of a given application.
Being among the family of SLC 5/04 processors, the processor offers a memory capacity of 16K, 32K, or 64K words. The 1747- L543 itself has 30 I/O module slots, 4096 input ports and output ports, and up to 64K memory. It has standard battery-backed RAM and backup flash memory.