Patent ID: 7552028
Filing Date: 2009-06-23
Classification: G01R

Abstract:
1. In a test apparatus including test modules that provide test signals to devices under test, a measuring instrument that measures a reference parameter including at least one of a reference voltage, a reference resistance and a reference current of the test module and a control device that controls the test modules and the measuring instrument, a recording medium on which a diagnostic program that causes the control device to diagnose the plurality of test modules by using the measuring instrument is recorded, wherein a kind of the measuring instrument can be changed, the diagnostic program including: a target diagnostic software module that causes the control device to diagnose a target test module; an acquirement module that causes the control device to acquire measuring instrument identification information indicative of the kind of the measuring instrument provided in the test apparatus; a measurement software module provided for each kind of measuring instrument and executed on the control device that causes the control device to issue a command to cause the measuring instrument to measure the value of the reference parameter of the test module to the measuring instrument and receives the measurement result of the reference parameter from the measuring instrument; and a switching software module that calls the measurement software module corresponding to the measuring instrument identified by the measuring instrument identification information, causes the control device to execute the same, and returns the measurement result of the reference parameter to the target diagnostic software module, wherein the diagnostic program is provided for each kind of bus connecting between the control device and the measuring instrument and further includes a bus control software module that causes the control device to communicate between the control device and the measuring instrument through the bus, the acquirement module causes the control device to further acquire bus identification information indicative of the kind of bus connecting between the control device and the measuring instrument, the switching software module calls the measurement software module corresponding to the measuring instrument identified by the measuring instrument identification information in response to receiving a call to instruct to measure the value of the reference parameter of the test module from the target diagnostic software module, and the measurement software module called by the switching software module calls the bus control software module corresponding to the bus identified by the bus identification information, and causes the control device to execute the same and issue the command to the measuring instrument to receive the measurement result of the reference parameter from the measuring instrument.