KB89744
Published:
Revision: 1.0

All gadgets with Computed Tags stop working


Applies To:

  • GRV-EPIC-PR1, GRV-EPIC-PR2
  • GROOV-SVR-WIN, GROOV-SVR-WIN-BASE, GROOV-SVR-WIN-SNAP
  • GROOV-AR1, GROOV-AR1-BASE, GROOV-AR1-SNAP
  • GROOV-AT1, GROOV-AT1-SNAP

Versions Affected:

groov View versions R4.3a and R4.3b
GRV-EPIC-PR1 versions 3.1.0 and 3.2.0.


Symptoms:

All gadgets in your project that use Computed Tags report the following:

Could not connect to the controller. groov will keep trying to connect.
Details: Trying to reconnect to device Computed Tags.

‚ÄčThis error occurs if a Computed Tag with an integer output equals zero. When one of these tags equals zero, all Computed Tags stop working.

If you download groov View's logs, you'll see an error that begins like this:

[java] 14:09:58,244 WARN  [groov.scanner.DeviceController (Computed Tags)-0] c.o.g.s.c.DeviceController - An unknown error occurred while communicating with device Computed Tags.
     [java] java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long

Workaround:

Disable or remove any Computed Tags that produce an integer 0 result.

Resolution:

Opto 22 has resolved this issue and will include the fix in an upcoming release.

Questions?

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


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