IDU SW allowed into instrument control without INSTRUMENTATION attachedCalibration likely to fail if no instrumentation is attachedFails to detect unkown instrument during instrument exchangeInstrument control allowed with unsupported INSTRUMENTATIONIncorrectly detect unknown instrument during instrument exchangeCannot engage instrument control.User required to detach and reattach INSTRUMENTATIONFails to detect instrument error during instrument exchange{ sim memory quality,instrument memory quality }Incorrectly detect instrument error during instrument exchange{ instrument control }Fails to detect calibration fault