How to fix high CPU usage on cRIO 9022 when using NI-IMAQdx modified example

[nats8]

Hello, 

I am running a modifed version of the low-level snap example in the NI-IMAQdx example foldelrs. I am attaching a screenshot of my code but basically I modified it so that I could save the images being taken. The code works, however while it is running I get a pop-up window with a message that says "waiting for real-time target to respond" and a button that says "stop waiting and disconnect". If I don't do anything the window eventually goes away by itself but it does come back a couple of times during the duration of the run. I read online that this can be due to high CPU usage. I checked the usage while running the VI and indeed at times it goes up to 99%. I am using a basler camera an acA-2500-14uc camera with labview 2015. Any suggestions on how to improve this?

Thank you!

[Jacobson · Accepted solution]

I would first try taking the IMAQ configuration, start, and stop out of the while loop. Opening and closing sessions as well as creating and destroying image buffers all takes time.

[nats8]

Hello, 

Thank you for your reply! The only reason it was setup like that was because I was trying to save the image directly to a USB flashdrive while using a USB camera both connected to a USB hub on the one USB port on the cRIO 9022. Because of this I have to close communication with the camera before I try to save to the flashdrive or I get an error. I will try and take all the images and save them to the cRIO and then transfer them all at once to the flashdrive. I just need to make sure I properly erase the images on the cRIO because we will be taking about 100 images every 24 hours for 1000 hours. Now I just have to figure out how to save-transfer-erase the images. 

Thank you for your help!