Digital Test on VAL("") failure

The following will show how to cause a failure on a digital Test that contains a number not valid.

In the post to your message box Expression:

Val(Parameters.EnteredData,Locals.ValidNumber),
Parameters.EnteredData=(Local.ValidNumber?Parameters.EnteredData:"NAN")

The digital test that follows has the usual Data Source code:

Step.Result.Numeric=Val(Parameters.EnteredData)

However, this will replace any entry is entered for "NAN" reporting of results achieved. String "NAN" by VAL() converts it to 'not a number '.

This example uses parameters, but would be better as a Local.

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Solution in the first Post.

Tags: NI Software

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