I downloaded 201786.vi, a real time chart as a learning tool. My overall objective is to record RS-232 serial data from a balance scale. As a test, I tried to use the (seconds) time information
in the bottom left of the block diagram but it my probe never changes even while the chart is running. 1. What am I missing? 2. Might there be a better serial port to strip chart example? Thanks
Perhaps you can post your VI or tell us from where you downloaded this VI. It's hard to tell you what you are missing when there is nothing there to look at.
The reason why that values never changes when you have a probe on it is that it only executes once in order to get the start time of the VI and set the waveform chart's properties accordingly. Only the code in the blue while loop runs continuously.
If you want to get a continuous update of time data, you will need to copy a portion of that code and place it in the loop and use the data in whatever manner you want.
