DaveF wrote in message news:<50650000000800000089510000-1023576873000@exchange.ni.com>...
> I am reading an ascii serial numerical input, and I need to display
> that data (numbers corresponding to a voltage) on a chart.. If I
> connect the "Data from port", which displays OK when running (4 digits
> of data ####) to any type of a chart or graph, LV tells me wrong kind
> of data. Surely this has to be easy to do, so what am I missing here!
> Thanks in advance!! Newbie here!
Hi Dave,
which .vi are you using that contains the "Data from port" output
terminal?
I'm guessing here, that your display FPTerm is pink - as in the data
it is displaying is text - you say it's ascii serial data, which would
normally be text. If so, you need to convert it to an ac
tual number,
rather than its text representation. (I could be wrong here, so please
correct if necessary).
Have a look at the strings functions sub palette. On there you'll find
a few sub .vi's designed for this purpose within the string/number
conversion sub palette. If it's just 4 digits, you can probably get
away with Decimal String to Number. With this number, you can wire it
onto a chart to add a point.
If you want to use a graph, it expects all the data at once, so you'd
have to build up an array of data to pass to it. I think the chart
seems to be what you're after.
Hope that helps
S.
