FOERFARANDE OCH ANORDNING FOER ATT TESTA ETT DATORSTYRT SYSTEM.

摘要

A computer-controlled system, such as an elevator, is tested by augmenting computer operation with a diagnostic device containing a computer and coded diagnostic programs that a service technician identifies through a keyboard using diagnostic test codes that appear on an overlay which contains special codes and identifiers associated with numerical displays and lights on the diagnostic device for correlating test results to the test performed according to the program.