The Allen-Bradley 1747-L552 is an SLC 5/05 controller module designed for the Allen-Bradley SLC 500 Modular Hardware system. This high-performance programmable logic controller (PLC) features 32 KB of user memory and includes built-in communication interfaces such as a 9-pin RS-232 port and Ethernet communication ports for seamless data exchange and network connectivity. The 1747-L552 controller supports up to 4096 discrete I/O points, including 4096 input and 4096 output points for both local and remote I/O configurations. Engineered for speed, reliability, and scalability, the Allen-Bradley 1747-L552 delivers efficient control, robust communication, and flexible integration within SLC 500 PLC systems used in industrial automation and process control applications.