Allen-Bradley 1747-L552 SLC 5/05 32K Controller

The Allen-Bradley 1747-L552 SLC 5/05 32K Controller is a powerful processor designed for industrial automation systems built around the SLC 500 platform. With 32K words of memory, Ethernet connectivity, and RS-232 communication, it provides the processing and communication capabilities required for machine control, production equipment, material handling, process automation, and other industrial applications.

Its modular architecture allows the controller to support up to 3 chassis and 30 I/O slots, with a maximum capacity of 4,096 discrete inputs and 4,096 discrete outputs. The combination of Ethernet and RS-232 communication makes the 1747-L552 suitable for connecting the controller with programming systems, HMIs, industrial networks, and other automation equipment. Its Flash EEPROM backup capability also provides an additional option for protecting the controller program.

For maintenance departments, system integrators, automation engineers, and industrial procurement teams maintaining existing Allen-Bradley SLC 500 systems, the 1747-L552 can serve as a replacement processor or critical spare part. Rockwell Automation has discontinued the 1747-L552, with a listed discontinuation date of March 31, 2024, making reliable sourcing particularly important for companies operating legacy SLC 5/05 installations.