The Allen-Bradley 1747-L543 is a robust SLC 500 processor designed for medium to large-scale control applications, boasting a notable 64K word integrated memory capacity, where 60K words serve data and programs. It skillfully manages up to 4096 discrete input and output points, features a Flash EPROM for backup, and supports 107 programming instructions. Equipped with DH+ and RS-232 communication ports, the processor offers fast response times with an average program scan time of 0.9 milliseconds and typical I/O scan time of 0.225 milliseconds. Integrated LED indicators provide easy diagnostic capabilities, while its proven distributed I/O topology simplifies control architecture. This processor excels in both basic controls and complex strategies such as PID and motion control, making it suitable for various industrial applications despite the SLC family being discontinued.
