The 1756-A7 is a 7-slot chassis from the Allen-Bradley ControlLogix series of Rockwell Automation, and is a fundamental component for building ControlLogix control systems.
It houses power modules, CPU processors, and various I/O modules, and provides a backplane communication bus for connecting these modules. As a compact chassis model within the ControlLogix platform, the 1756-A7 is primarily targeted at small to medium-sized automation control systems.
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