UDP read and Write cRio Error 54

[ahmalk71]

Hi,

I'm having an issue with running a vi on the cRio in startup. The UDP communication works fine when I run the RT program from the host PC (remote) but as soon I deploy it on the cRio and run it as startup the UDP open nodes return error 54. What is causing this problem? I'm using cRio 9034 with RT-linux and labview 2025. I have included the Host and RT VIs.

Thanks in advance

Best regards

ahmalk

[ZYOng]

Error 54 in TCP Connection.vi in LabVIEW

The network address is ill-formed. Make sure the address is in a valid format.

Please attach your code so that we can advise.

[ahmalk71]

  

[ahmalk71 · Accepted solution]

Putting a delay before the UDP open nodes solved the problem. Apparently the network initiation in cRIO is not complete before the VI starts. Strange I must say 😕

[GerdW]

Hi ahmalk,

did you read this other thread?

[ahmalk71]

Hi GerdW,

I wish I did, it's not always that easy to use the right key words in your search 😕 After all I wouldn't have come up with that would been an issue.

Best regards

[GerdW]

Hi ahmalk,

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@ahmalk71 wrote:

I wish I did, it's not always that easy ..

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You also should implement some error handling.

This way your code could react on errors, like trying to re-open the UDP connection after an error occurs...