Allen-Bradley 1747-L542 SLC 500 PLC Processor

Allen-Bradley 1747-L542 is a Series 1 SLC 500 5/04 CPU Processor, serving as the system processor for the SLC 500 family. It provides 32K of memory for user programs and data, and features an RS-232 serial port for programming and diagnostics along with a DH+ (Data Highway Plus) port for local networking with other SLC devices. Cataloged as a Series 1 SLC 500 processor, the 1747-L542 also has a conformal-coated variant, 1747-L542-CC, that shares the same core specifications with enhanced environmental resistance. This processor is designed for mounting in an SLC 500 rack to manage discrete and simple automation tasks that require reliable ladder logic control and straightforward serial/network communication.