SERVICING A SOFTWARE-CONTROLLED ELEVATOR

摘要

A computer-controlled system, such as a microprocessor-based elevator, is tested diagnostically with another microprocessor-based test device independently programmed to perform various special manually selectable test sequences by overriding elevator microprocessor control. Through a keyboard an operator can enter coded test requests and test parameters which are converted by a diagnostic microprocessor into instructions that are conveyed to the elevator microprocessor to initiate a test system operation. Resultant elevator operation is sensed by the testing device using stored test programs and results and displayed on numeric displays and lights on the diagnostic device by addressing coded information on a keyboard or by following sequentially programmed test sequences.