1747-L553 Allen Bradley
The 1747-L553 module by Allen-Bradley/Rockwell Automation is a Central Processing Unit (CPU) from the SLC 500 and SLC 5/05 series. This CPU features integrated CMOS RAM with battery backup support and is compatible with the Allen-Bradley 1747-M13 memory module, offering an additional 64 KB of memory. Equipped with an Ethernet channel and an RS-232, DH-485, DF1, or ASCII port, the 1747-L553 is among the most versatile CPUs in the SLC 500 and SLC 5/05 series, capable of managing up to 64 connections. This enables the module to engage with 64 devices or applications at the same time.