Negative LJUe9 Handle Values | LabJack
 

Negative LJUe9 Handle Values

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Eximo
joshuaiwhite1's picture
Negative LJUe9 Handle Values

We have recently started having issues communicating with two labjacks and they are opening a handle with a negative value.  Is there significance in the negative handle value or should we keep fishing?

 

 

LabJack Support
LabJack Support's picture
A negative value doesn't

A negative value doesn't indicate a problem or have significance for a handle. A handle value of 0 (NULL) is returned when OpenLabJack cannot open a device.

To double check, during your two open calls, do they return an error? Are your handles unique values for your two UE9s?

Eximo
joshuaiwhite1's picture
no errors when opening the

no errors when opening the UE9s just checking to see if that was the culprit of the issue.  I'll highlight the communication issues in another thread.

 

Thank you!