Synchronous display means that the indicator is updated each and every time new data is presented to it. If you have an indicator wired to some data source insode a loop that is running very fast, the indicator's value on the screen would update every single iteration of the loop if you enable Synchronous Display. Humans cannot process visual data that fast, so it is really not necessary to have something update that fast. The processor time is better spent doing DAQ, calculations, array manipulation, etc. So if you do not enable Synch. display (default) It will still update the indicator display, but not every single time the loop iterates.
You can make radio buttons exclusive in a variety of ways. There are some examples using ExOR gates and shift
registers. You can also carefully modify a slider control to look like several radio muttons.
Look at this discussion thread for more info.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=50650000000800000092090000&ECategory=LabVIEW.LabVIEW+General
Daniel L. Press
PrimeTest Corp.
www.primetest.com