Gadgets show "could not connect to the controller" message

Applies To:

groov View running on:

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

Versions Affected:

R1.3.0 to current for GRV-EPIC-PR1
R4.1a to current for all others listed

Symptoms:

If your groov View project has an I/O Unit device and contains gadgets configured to access a memory map address that is not 4-byte aligned, after groov View tries to access that address, it displays yellow triangles for any gadget connected to that I/O Unit device. If you click on the triangle, groov View displays the following message:

Could not connect to the controller. groov will keep trying to connect.
Details: An unknown error occurred while communicating with device OptoMMP@<address>:<port>.

Where <address> and <port> are the IP address and port number of your controller.

Workaround:

If you can, avoid configuring gadgets that access tags with addresses that can't divide evenly by 4.

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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