Atomic IMU and Error - 1073807246

Question

Hey everyone,
I'm trying to construct a vi to read from multiple atomic IMUs for an aerospace university project.
I've got the vi which is attached to the bottom of this code.
Now, the imu is set up using BR@Y terminal so I know that it's sending the data and when I go into the Instrument I/O assistant and press the 'read and parse' tab then the individual readings come out as I expect them. The device is connected through USB and when looking at the individual readings (count, accel x etc) it comes out fine.
My problem is that I don't understand how to get all of the data from there to running continuously so that I can plot all of the accelerations on one graph and all the rates on another graph. I have the two graphs and my issue is that firstly I cannot attach the waveform graphs to any of the readings.
Furthermore, when I press 'Run' the program returns the error:
Error -1073807246 occurred at Property Node (arg 1) in IMU Reading.vi:Instance:0->IMU Reading.vi
Is this because of a timeout? I can;t understand it since if I run the program in the Instrument I/O assistant then it works well and gives me the data I am looking for.
I'm not using DAQ since my device has no drivers and works fine over USB.
To summarise, I want the program to take the data coming in over the USB (as correctly parsed by the Instrument I/O assistant) then plot the £3 accelerations v count" on one graph and the "3 body rates v count" on another graph.
The next step is to get the program to write all of the data to a file but that is for another day I feel... :s
Any help would be very much appreciated.
Aryeh
Attachments:
IMU Reading.vi ‏84 KB

Answer 1

Dear rubberhedgehog
I recomend you to use the Instrument I/O assistant because I don´t think that you could find any drives for your atomic IMUs for labview.
Without the knowledge of the not functioning code it is not easy to find out what causes the error.
If your code is working like posted try to look on the XY Multi Plot.vi in Help>Find Examples. It should help you to resolve your problem with the graph plotting.
The problem in your code is also that you have a graph which shows all the available data only once, and you enter only one element in every loop. That is why you would need to use a chart which remembers the previous data and add the new data to the plot. In your case you need to use XY graph to be able to show the count on one axis and i.e. the acceleration on the other. If it is enough for you to have only the final data and not see the graph during the measurement you only need to put the XY graph out of the while loop and create an array from all measured data. Beter would be to use a shift register whit an updating array and show the whole array in every loop on the graph. You could remember all elements in the shift register and in every loop ad new items to the array.
I hope to help