VISA error -1073807360

[sruss]

I have searched the board and not found an exact example of what I am experiencing. The application I am using has run successfully for years and has had no problems. All of the sudden, this error pops up. The com port drivers are all up to date, and as far as I know there have been no updates or changes to the machine that it is running on. I have attached the VI for good measure, any suggestions as to where I should look next?

[nyc_(is_out_of_here)]

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can't delete

[cici_p]

Hi Sruss, 

Since this VI is the final program, I'm having a hard time replicating the error. What does the error code say? 

Cici Z.

Applications Engineer

National Instruments

[sruss]

Error-1073807360 occurred at Property Node (arg 1) in VISA Configure Serial Port (Instr).vi->Initialize Ovens.vi->Final program v5.vi

[TheOtherKid]

Hey sruss,

So that error code is for an unidentified error. These error usually come up from either user configuration or drivers. The error itself appears to be coming from the timeout input of the property node in the mentioned VI. That seems odd to me since the timeout value seems find in the code, but what it does tell us is that VISA is unhappy about something in the setup.

The first step I would suggest is to run the program with highlighted execution to verify that this is the first place an error occurs in the code.

Also, since this appears to be related to the hardware setup, can you give a bit more detail about the exact communication lines and hardware in the system? This might give us an indication as to what's causing the error.

[sruss]

I used highlighted execution and single stepped through, it seems as this is the first place that the error occurs. As far as hardware is concerned, it is using a single USB port with a COM to USB adapter. I have checked, and the  drivers are up to date. What other details would be helpful?

[TheOtherKid]

If that's all good, then you'll need to narrow down whether the issue is the hardware or the software. First, check your device's manual and verify that your serial setup matches what it requires. Also, what is the device specifically?

Then, once you know that the setup matches, you can try running the simple serial example. It's under Help>>Find Examples...  under Hardware Input and Output>>Serial>>Simple Serial.vi. If that doesn't work, you can try connecting over a VISA test panel NI MAX. If the example does work, then the issue is within the program itself.

If don't get a response from the test panel. Then there's something wrong with the hardware setup.