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Found 6 results

  1. Hello Everyone, I have created this feature to create named variables of any data type in memory and access its value from any part of data code which is under same scope using its name. This variables stores instantaneous value. Best use case of this toolkit is acquire data set variable values & read from any loop. Do not use for Read-Modify-Write Once variables are created in memory, you can be grouped them and access its values using names. You can create variable for any data datatype & access its value using its Name. I have tested this toolkit for memory & performa
  2. I am trying to read the value of some data in a while loop from a sub-vi (attached as FTP WPF UDP below) into the top-level vi (attached as Proportional Controller VI) but I find that the data is timing out in my top-level vi whereas it runs smoothly withing the subvi. I have used the while loop and the timing in the subvi is synchronized to the external code that sends data via udp to the subvi. Is there a way you think this can be fixed? Below is my attached code. Thank you! Proportional Controller.vi FTB WPF UDP - Original.vi
  3. I did a presentation at NIWeek 2013 on the new user event features in LabVIEW 2013. I will post a link here when it's ready for online consumption. For now, I'd like to start a discussion on what all the LAVA members think of the changes and additions. If you have questions on how one feature or another work, please post here and we'll get it answered. To summarize, here is what was changed, added: New - Event Inspector Window (you're gonna love this!) New - High Priority events New - Flush Event Queue Function New - VI Scripting methods and properties for events New - Mouse Scroll W
  4. Hi all, I got a strange queue behavior that is probably related to race conditions. The problem is eliminated (a way around is found), so there is no need in a quick solution. However, I would be happy to understand reasons for such a phenomenon. BD of the “problematic†VI is attached. The queue size is limited to 1. The program consists of multiple asynchronous processes. Execution reaches the Enqueue Element node than stops. The timeout never happens; the program hangs. However, there is more. If I try to execute the VI step-wise, everything works fine until the execution ente
  5. I am mentoring an FRC team and we were discussing a design where we have a couple channels of information, some of which is very high frequency and losing data is not too important, so we are using a notifier. We also have a different channel of data which is much lower frequency, but losing any would be an big problem and we are using a queue. Now the tricky part we would like to be able to wait on data from either source (preferably not busy wait). I have come up with a a couple possibilities: Busy wait on both, looping between checking both sources and a 0 delay in the loop to preve
  6. I am designing a method for multiple application instances to coordinate an action across a network. I have previously implemented this using queues for coordination of asynchronous VIs within a single application instance. I now need to make this work across a local network. I have been looking at network shared variables, network streams, TCP/IP, UDP. I would like to know if anyone else has accomplished this and what you learned along the way. The basic requirements are: N number of independent applications need to coordinate some action (essentially a rendezvous). No one application
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