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SPEEDY-33 Graphing and Charting Limitations

Primary Software: LabVIEW Modules>>DSP Module
Primary Software Version: 2.0
Primary Software Fixed Version: N/A
Secondary Software: N/A

Problem:
I am developing a program for my SPEEDY-33.  When I plot data to a chart or graph, sometimes it displays incorrect data.  I know my program works correctly because the final output is correct, but for some reason the charts and graphs plot the wrong data.

Solution:
This is one of the limitations of using the SPEEDY-33 with a high level and relativily slower operating system.  The SPEEDY-33 can very quickly run the code before the information can be transimitted back to our PC.  The result is that our graphs and charts will sometime display incorrect data, even though the program is functioning correctly.  Putting a pause along with writing data to the indicator will sometimes fix this issue.  Below is an example of how to do this.



Related Links:

Attachments:
SPEEDYdelay.JPG




Report Date: 06/29/2007
Last Updated: 07/09/2007
Document ID: 4ASGOHJV

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