KB84373
Published: January 9, 2015
Revision: 1.0

groov: Cannot clear NaN error received when using the trend gadget


Applies To:

GROOV-AR1
GROOV-AR1-SNAP
GROOV-AT1
GROOV-AT1-SNAP
GROOV-SVR-WIN
GROOV-SVR-WIN-SNAP

Versions Affected:

Problem affects versions: R2.3a and lower


Symptoms:

In a trend gadget in groov, if you see an error that states, "An unexpected error has occured. Details: Invalid value received from the server: NaN" you are unable to dismiss the error dialog box.

"NaN" stands for "Not a Number" and means that a floating point value is not valid.

In order for the error message to be cleared, the source of the NaN data must be corrected and you must refresh your browser page.

Sometimes the NaN value will correct itself. If it is associated with a SNAP analog module, it is usually caused by low voltage at the I/O rack that contains the analog module.

Workaround:

Try refreshing the browser page. If the NaN is from a SNAP analog module, check voltage at the I/O rack.

Resolution:

Opto 22 is investigating this issue.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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