Allen-Bradley 1756-A17 is a 17-slot ControlLogix chassis (rack) that provides the backplane for a modular ControlLogix I/O system. Manufactured by Rockwell Automation (Allen-Bradley), this chassis is designed to host a CPU module and multiple 1756 I/O and communications modules in a single 17-slot rack, forming the core physical platform for a ControlLogix installation. As part of the 1756 ControlLogix family, the 17-slot chassis supports scalable expansion for industrial automation applications, from basic machine control to complex process automation, when used with compatible Power Supply and I/O modules from Allen-Bradley.
