1756-L61 | Allen Bradley ControlLogix 2 MB Memory Controller

Allen-Bradley 1756-L61 ControlLogix 5561 ProcessorThe Allen-Bradley 1756-L61 is a ControlLogix 5561 controller designed for large-scale automation and process control applications, providing 2 MB of user memory and 478 KB of I/O memory, and supporting up to 250 controller connections. As a chassis-based controller, it can be installed in any available slot of the 1756 ControlLogix chassis, with compatible chassis including the 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17.Key Specifications:Memory: 2 MB user memory, 478 KB I/O memory (expandable to 128 MB non-volatile storage using a 1784-CF128 CompactFlash card) I/O Capacity: Up to 128,000 digital I/O points and 4,000 analog I/O points Tasks/Programs: Supports up to 32 tasks and 100 programs per task, with event task triggering for responsive applications Communication: Built-in RS-232 serial port supporting DF1 full/half-duplex, ASCII, DF1 radio modem, Modbus via logic, and DH-485 protocols; also compatible with EtherNet/IP, ControlNet, DeviceNet, and Data Highway Plus via additional modules Motion Control: Supports removal and insertion under power (RIUP) for enhanced maintainability Programming: Compatible with Studio 5000 Logix Designer software, supporting ladder logic, structured text, function block diagrams, and sequential function chartsIdeal Applications: Well-suited for medium-to-large scale automation across manufacturing, oil and gas, power generation, food and beverage, pharmaceuticals, and water/wastewater treatment industries.