The Allen-Bradley 1747-L542/C is a SLC 5/04 CPU Controller for the SLC 500 modular PLC family. It includes 32K of user memory for program and data storage. DH+ (Data Highway Plus) is the available communication port for connecting to DH+ I/O racks and devices. This Series C variant, manufactured in Singapore, was discontinued by Rockwell Automation on March 31, 2024.
