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Using a Fault Insertion and Current Sensing Unit

One way to validate behavior during test if signal integrity is compromised.

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When testing embedded software on mission critical electronic control units, like those used in automobiles or aircraft, it is important to validate the behavior with external faults for example if the integrity of the signals to the controller are compromised. The SLSC-12251/2 products from NI are designed for this purpose, these modules can be inserted into the signal path between the data acquisition system and the device under test (DUT).

During a mission an electronic control unit may be exposed to erroneous signals due to fracturing of the wiring harnesses. This can be caused due to fatigue, mechanical failure, accidental or deliberate damage during operation.

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