MyRIO analog read closing problem

[gazsi3]

Hello World!

While trying to create an analog and Digital readout VI for a MyRIO project, we encountered an interesting problem. There was no data coming trough the measurement data forwarding Notifier.

We tried to look for the problem using the Highlight execution function.

It turns out that the loop runs flawlessly twice, but the third time it always gives an error after the "CloseVI" block.

Adding delays bitween the readout block and the cose block didn't seem to help.

We have no clue what could be the cause behind the problem. Can anybody suggest a solution?

Cheers
Richard

[udka]

Can you try with low level VIs instead of express VIs and check : https://www.ni.com/docs/en-US/bundle/labview-myrio-toolkit/page/choosing-between-express-vis-and-low...

[Jacobson-ni]

It looks like they are using the low level VIs Udka. I would recommend keeping the open and close outside of the while loop though. Open the connection once before the while loop and Close only after the while loop has finished executing.

I don't have LV in front of me so what does the error actually say?

[udka]

@Jacobson: Notice that the code of myRIO Express VIs uses Smart Open VIs and the image shows usage of Smart Open VI. Hence I suggested to use the vis as suggested in https://www.ni.com/docs/en-US/bundle/labview-myrio-toolkit/page/choosing-between-express-vis-and-low...

[Jacobson-ni]

Good catch, I didn't see that at first.