Processor-controlled system and method of operating a...

G - Physics – 05 – B

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G05B 15/02 (2006.01) G06F 9/40 (2006.01) G06F 9/42 (2006.01) G06F 9/46 (2006.01)

Patent

CA 2272425

In a system (SYS) controlled by a processor by means of a control program, the control program consists of several hierarchically arranged functional layers (LAYER1-4). Each of the program layers provides services, at least part of the services of a higher program layer building on services of a lower program layer. The program layers are linked asynchronously, such that a request (REQ) received from a higher program layer is responded to by sending a confirmation (CONF) before the request (REQ) is forwarded to a next lower program layer. As a result, the program layers are separated with respect to the time sequence of the program run. Advantageously, each of the program layers (LAYER1-4) has a memory (DB1-4) associated with it in which configuration data of the respective program layer are stored. A request (REQ) is first processed locally in a current program layer by updating the configuration data in the memory. Then, the confirmation (CONF) is sent, whereupon the request is forwarded to the next lower program layer for further processing.

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