Allen-Bradley 1747-L532 SLC 500 PLC Processor Unit

The 1747-L532 SLC 5/03 Processor Unit from Allen-Bradley is a mid-range controller for the SLC 500 family, delivering 16,000 words of user memory and a 1 ms program scan time to support reliable discrete and small analog control tasks. It provides DH-485 and RS-232 serial communications for device networking and remote I/O access, with an I/O scan time of about 0.225 ms to help keep cycle timing tight. Designed for standard SLC 500 backplanes, the L532 supports up to three I/O chassis and up to 30 backplane slots, with a 500 mA backplane current rating and Flash-based backup memory to preserve logic between power cycles. The CPU operates in an ambient range of 0 to 60 C, aligning with typical industrial installation conditions.