The Allen-Bradley 1747-L532 is the SLC 5/03 System Processor for the SLC 500 modular controller family, delivering a 1 millisecond program scan time and 16,000 words of user memory. It supports up to 4,096 discrete inputs and 4,096 discrete outputs, plus up to 480 analog I/O points, with DH-485 and RS-232 communications for programming and I/O networking. Power and environmental specs include backplane current of up to 500 mA at 5 V, an operating temperature range of 0 to 60 C, and flash-based backup memory to retain logic and data across power cycles.
