Allen-Bradley 1747-L532 SLC 500 Processor Module

The Allen-Bradley 1747-L532 Rev 8 SLC 500 Processor Module is a SLC 5/03 central processing unit designed for the SLC 500 modular PLC family, responsible for executing ladder logic programs and coordinating I/O via the backplane. It provides 12K of user memory for program and data storage and includes two serial communication ports—RS-232 and a DH+ (Data Highway Plus) interface for device networking. The module is rated for Class I, Division 2 hazardous locations and draws power from a 5 V DC backplane supply (about 500 mA) with 24 V DC supply current around 175 mA. As a Rev 8 SLC 5/03 processor, it remains compatible with SLC 500 I/O backplanes and DH+ networks, making it suitable for retrofits or new installs in compact automation projects that rely on the classic Rockwell Automation ecosystem.