This process is simple to carry out using the string to number conversion VIs in LabVIEW. Alternatively you could you Scan From String and build the necessary format code to perform the conversion.
Only thing you need to be aware of is the use of lower case letters. You strings will need to be parsed to upper case (again function in String palette) - see the attached KB article for more details and an example VI.
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/408a70ca4f7cb956862566d5005718b7?OpenDocument
Jeremy
