Producer/Consumer Architecture

[JohnnyBoyHendo]

PST data logger trial 2.

[Karunya_R]

Hi,

I was able to see what you were referring to with your error. The best thing to do is to coerce the enums into the proper numeric types by inserting numeric conversions between enums and the input terminals of formula nodes.This problem is rare and happens under certain circumstances only. You can also refer to this dicussion forum which talks about the same thing.

Hope this helps!

[jamie310382]

Karunya,

Thank you. I am unsure how to do this. Could you ammend the attahced VI and highlight the changes.

[jamie310382]

VI attahced this time

[jamie310382]

I have managed to get the code working, but still can't get the writing speed up to the desired readings per second. I was told in another post, that if I changed to a producer consumer architechture that this woudl sort out my logging rate problem. I have set both loops to 25ms, however on my datafile I am only getting around 10 readings per second. Any ideas?

[JeffOverton]

The wait functions only guarantee that the loop will take at least that long to iterate.  If the data reading or processing takes 100ms, the loop will only iterate at 10Hz.

[jamie310382]

yes Jeff, however I was told that if I changed to the producer consumer architecture that the update rate wold improve. Link to previous correspondance below:

http://forums.ni.com/ni/board/message?board.id=170&message.id=308173#M308173

[jamie310382]

Please find a copy of the top level VI attached. Am I doing something wrong which will affect my logging rate?

[JeffOverton]

It looks like Ben said it would have a chance of improving, but without being able to see about seven of the SubVIs, it's hard to tell how long they may be taking also.