Timestamp scan from string

[DeltaJ]

Hi All,

A minor query about time stamps and scan from string. I needed to convert a string back to a timestamp and found the solution I needed at this post: Link

I wanted to make it a little more programatic and noticed that when I assembled the formatting string it would not recognise the assembled output as a Timestamp - it outputted a double. The strings inputs are identical. The double precision output converted to a Timestamp to give the correct value - so I have a work around.

I was just curious if this is a minor issue with LabVIEW or is this an intentional feature? Or is there some step I'm missing to coerce my output to a Timestamp.

Thanks,

Dave

[Darin.K · Accepted solution]

When you wire a string constant to Scan From String, the function can auto-adapt to the input and you get the proper output automatically.   With a programmatically generated format string you need to use the Default Value input (circle with the dot) which defaults to DBL.  Just wire a Timestamp constant, or the current time, to that input.

[DeltaJ]

That explains it - thank you,

Dave

[TPoint]

I convert a string to a double represented as a timestamp. The strange is that it converts wrong, if I wire a 'NaN' to the default value. Look inside the code..

(LabVIEW 2010 SP1)

[GerdW]

Hi TPoint,

it also converts "strange" when you provide a large value in your "0" control like ±3T (or larger). Seems to be connected with allowed range of DBL values for the timestamp display…