The Allen-Bradley 1756-A13 is a ControlLogix controller from Rockwell Automation, part of the scalable 1756 ControlLogix family for modular industrial automation. As the central processing unit in a ControlLogix system, it coordinates logic, I/O, and communications across compatible modules on the backplane to drive automated operations. Identified by the 1756-A13 part number, this controller is used in ControlLogix-based control architectures that require centralized processing and reliable execution of control routines.
