AMIKON · Industrial Automation Allen-Bradley 1756-L61 ControlLogix Controller Allen-Bradley Programmable Controller Discontinued Product The 1756-L61 is a controller for existing ControlLogix automation systems. It is relevant to maintenance teams sourcing a matching controller for installed equipment, investigating controller faults or planning a system service intervention. Technical Specifications Data & Logic Memory 2 MB I/O Memory 478 KB Power Dissipation 3.5 W Product