Controller assembly having a base unit with a dockable processor unit

摘要

A controller assembly utilizes a base unit that receives a dockable processor unit. The controller assembly typically is a programmable logic controller that permits base units and processor units to be interchanged according to the requirements of a specific application. The base unit includes a power supply, I/O circuitry and interface circuitry, and the processor unit includes a processor, such as a CPU. A unique latching mechanism secures the processor unit to the base unit. The latching mechanism also includes a lever assembly that facilitates removal of the processor unit from the base unit.