young grasshopper

Since enumeration variables have a number and a string associated with them, I figured I would be able to add an integer to an enumeration constant to be able to advance states in a state machine. But when I do that, the selector label in my case structure switches from displaying the string associated with the enumeration constant to the number instead..... Is there any way to force it to display the string? Attached is a VI that illustrates my problem.

QUOTE(Neville D @ May 7 2007, 03:54 PM) Nope I wouldn't need simultaneous AI & AO, the signal would be based on the one sample and should never change in form. The frequency is low because this is a waveform associated with a human heartbeat - the application is a patient simulator for testing pulse oximeters. Thanks

I have no experience using analog outputs in LabVIEW, and I'm just trying to determine whether this would be possible, so I don't kill myself trying to do something which can't be done... If I acquired a sample of an analog waveform (somewhat resembling a 1V 80 Hz pulse), would there be any way to turn around and use that sample as the basis for a new signal being generated on the analog output line of a DAQ board? What I would like to be able to do is reproduce the original waveform, but change the frequency and amplitude as desired. I haven't looked into this that much, so I'm sorry if this is a dumb question, but from what I've read it seems like signals are mostly generated in LabVIEW through either an equation, or using generic signal types like a sine wave. Thanks for any advice!