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The Allen-Bradley 1756-L63 is a versatile Programmable Automation Controller from the Logix 5560 series, designed for high-performance use in ControlLogix chassis such as the 1756-A4 and 1756-A17, supporting both standard and redundant power supplies. With an 8 MB user memory and 478 KB I/O memory, it accommodates up to 128,000 discrete I/O and 4,000 analog signals, and offers enhanced communication capabilities through its primary RS232 Serial port and optional EtherNet/IP, ControlNet, and more via add-on adapters. Engineered for demanding environments, this controller boasts robust shock and vibration resistance, thermal and power efficiency, and is equipped for integrated motion and redundancy, making it a formidable choice for complex automation tasks.