Allen-Bradley 1747-L543 SLC 500 Processor Module is the SLC 5/04 CPU for the SLC 500 family, delivering 64 KB of program memory for ladder logic and data. It provides an RS-232 serial port for programming and a DH+ (Data Highway Plus) port for networked communication with other controllers and devices. This chassis-mounted processor is designed to work with standard SLC 500 I/O racks and is used for compact machine control, simple process control, and legacy automation networks that require Rockwell Automation compatibility.
