KB86132
Published: March 14, 2018
Revision: 2.0

In groov, failure on a single OPC UA connection may cause tags on working OPC UA connections to fail


Applies To:

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

Versions Affected:

Problem affects versions: R3.1a through R3.4c

Resolved In Version:

R3.5a


Symptoms:

In groov, if you are using more than one OPC UA server, you may see some OPC UA tags failing (displaying the yellow exclamation icon) when they should be working correctly. The same tags might work fine on another page, or if used on the same page more than once, may work in one gadget but not another.

If the OPC UA scanner aborts when scanning tags, a group of tags is affected, and some that should succeed will fail.

Workaround:

If you know that any OPC UA tags have issues (for example, if the server is offline for some reason), remove those tags from the page and see if it allows the other tags on that page to work.

The best way is to duplicate the page having errors, and delete the known bad tags from the duplicate page until the upstream OPC UA issue is resolved.

Resolution:

Opto 22 has resolved this issue.

Questions?

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


DISCLAIMER

This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

OPTO 22 DOES NOT WARRANT THE COMPLETENESS, TIMELINESS, OR ACCURACY OF THE DATA CONTAINED IN THIS OPTOKB ARTICLE AND MAY MAKE CHANGES THERETO AT ANY TIME AT ITS SOLE DISCRETION WITHOUT NOTICE. FURTHER, ALL INFORMATION CONVEYED HEREBY IS PROVIDED TO USERS 'AS IS.' IN NO EVENT SHALL OPTO 22 BE LIABLE FOR ANY DAMAGES OF ANY KIND INCLUDING DIRECT, INDIRECT INCIDENTAL, CONSEQUENTIAL, LOSS PROFIT, OR DAMAGE, EVEN IF OPTO 22 HAS BEEN ADVISED ON THE POSSIBILITY OF SUCH DAMAGES.

OPTO 22 DISCLAIMS ALL WARRANTIES WHETHER EXPRESSED OR IMPLIED WITH RESPECT TO THE INFORMATION (INCLUDING HARDWARE, SOFTWARE, AND/OR FIRMWARE) PROVIDED HEREBY, INCLUDING THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTIBILITY, AND NON-INFRINGEMENT. Note that certain jurisdictions do not sanction the exclusion of implied warranties: thus, this disclaimer may not apply to you.

Copyright © 2018 Opto 22. All rights reserved.