Instrument Control (GPIB, Serial, VISA, IVI)

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real time waveform chart

Hi Dennis,

I´ve seen your answers about problems with real time waveform charts.

I have a similar problem in my app (in attachment). I'm acquiring a 10 Hz senoidal signal and my sample rate is 250 Hz. I'm sending (serial port) it (a sample at a time) to another PC. In this one I´m running the vi in attachment. I have one chart and one graph (for testing). I don´t know what I have to do to my XScale show the actual time, that is: When I run the vi, as soon as I start the transmission the waveforms are showed in both graph and chart, but the time in chart Xscale run faster than the actual time, it starts at correct time and I can see 10 cycles of the senoidal signal in 1 second of the chart (10Hz as it is), so the multiplier is ok, but the XScale is showing the time later than the actual time. Why it runs faster?

I´d thank you if you could help me.

Celia
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