We are using LabVIEW with TestStand and need to continually read an E-Stop input when running the main test sequence. The E-Stop removes power from the UUT but the second set of contacts we would like to use to force the sequence to go to the Cleanup state. What would be the best method to use in this situation.
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First, let's assume that you have the means to know that the E-stop has been pressed (perhaps by a digital input or maybe you read the current to the DUT). In your sequence, you could use a SequenceFilePostStep callback and check the E-stop. If the e-stop has been pressed, you use the Execution.Terminate method.
And of course, there are a number of other ways to implement an e-stop; this is just one way.