Allen-Bradley 1756-A17 ControlLogix 17-Slot Chassis

The Allen-Bradley 1756-A17 ControlLogix 17-Slot Chassis is the backbone for large ControlLogix installations, delivering a dedicated 17-slot backplane to host CPU, I/O, and communications modules in a single, scalable rack. It is a standard 1756 ControlLogix chassis designed to work with the 1756-PSCA adaptor, and it participates in Rockwell Automation’s ControlLogix family of backplanes. This chassis enables you to consolidate a wide range of 1756 modules across slots for digital and analog I/O, communication adapters, and other interface cards, providing a common platform for growth and maintenance. In typical configurations, a ControlLogix CPU is paired with I/O and network modules mounted in the 17-slot rack, with the 1756-PSCA adaptor helping connect power and backplane signals to the modules, ensuring reliable backplane operation and consistent data paths across all slots. Used in industrial automation environments such as manufacturing lines, packaging, and material handling, the 1756-A17 offers ample expansion capacity for complex control systems while remaining compatible with the broader 1756 family and its documented installation practices.