A method and apparatus is described for providing energy system status information. The method includes determining error pixel locations based on motion vectors and determining if the error pixel locations in a current frame are on an edge of an object in the current frame. Installation of the transponder lock results in very little aircraft downtime because the transponder lock connects in-line with existing aircraft wiring. In operation, while a first cassette is located within the process tool, a second pod is seated on the load port, the cassette is separated from the pod and the cassette is stored on a storage shelf. A camera generates images of the target search location for use by the operator to control the apparatus through an umbilical cable connected to the housing. The control system is used to control the ratio of material placed into the cascade and includes a processing means which is adapted to receive a throughput signal from at least one throughput sensor.