Problem with CanBus after doing Updates

[Biforot]

Hi All

After Updating the LabView programms I get an error regarding the Canopen SubVI's.

The 1. problem occurs by opening the LabView programm, it does not find the file "nicanopenlvapi.dll". Where can I find it and why does it has this problem now (It didn't happen before)?

This causes further problems with all the Canopen SubVi's (see picture), but I don't know what I can do to solve it. As far as I know there should be some path behind but I don't see the right solution for this issue.

Before I did all the updates the programm was running and had no issues regarding canbus, therefore the "syntax" of our labview should not be the cause.

kind regards

[GerdW]

Hi Biforot,

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@Biforot wrote:

After Updating the LabView programms I get an error regarding the Canopen SubVI's.

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What exactly did you update?

Did you just change your source code?

Did you update the CAN driver(s)?

Did you update/upgrade LabVIEW?

Did you create new executables from your source code?

Which CAN and CANopen drivers do you use?

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@Biforot wrote:

Before I did all the updates the programm was running and had no issues regarding canbus, therefore the "syntax" of our labview should not be the cause.

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Simply switch back to an older revision using your SCC (source code control) tool: now your program should be executable again!

(When you don't use a SCC tool until now: congratulations, you have learned about their importance for professional software creation! 🙂)

[Biforot]

Thank you for the fast answer.

What exactly did you update?

I started to update the drivers and firmware for our DAQmx to the recent version.

after that I had to Update the labview version (We use still 2018)and the canopen drivers as well.

Did you just change your source code?

I haven't changed anything there.

Did you update the CAN driver(s)?

I have the Versions installed shown in the picture for the canbus.

Did you update/upgrade LabVIEW?

Yes

Do you know something about this file "nicanopenlvapi.dll" is it important? Right now I am trying to repair the Canopen drivers, hopeful to get some positive result.

[GerdW]

Hi Biforot,

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@Biforot wrote:

Did you update the CAN driver(s)?

I have the Versions installed shown in the picture for the canbus.

Did you update/upgrade LabVIEW?

Yes

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Why did you upgrade a running system at all?

And what was the driver version before the upgrade?That part is crucial: there used to be an old CANopen driver, used as an wrapper over the also old NI-CAN driver. Atleast that's the CANopen driver I know of…

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@Biforot wrote:

Right now I am trying to repair the Canopen drivers, hopeful to get some positive result.

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Is it an option to switch back to the system state when your VI was executable?

[RTSLVU]

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@GerdW wrote:
Why did you upgrade a running system at all?

I have to agree with GerdW here: Don't fix something that is not broken!

Have you tried reinstalling NI-CAN or the latest CAN driver package you are using?