KB88802
Published: April 15, 2021
Revision: 1.0

Changes to USB Permissions Do Not Take Effect Immediately


Applies To:

Firmware for GRV-EPIC-PR1

Versions Affected:

1.5.0 to current


Symptoms:

This is an informational KB article. The groov EPIC processor is behaving correctly.

When you are changing the permissions settings on a USB storage media (from groov Manage Home, click System > USB > Permissions; switch from Secured to Unsecured, or from Unsecured to Secured), you may think that the changes take effect immediately. However, the changes do not take effect until after the controller (either PAC or CODESYS) is restarted. If you do not restart the controller, you may notice that the PAC Control strategy or CODESYS application is not writing to files on your USB storage media, even though the settings look correct.

Workaround:

Restart the PAC or CODESYS controller:

  1. Log into your groov EPIC processor with an ID that has Administrator privileges.
  2. In the groov Manage Home page, click Controller > PAC Controller or Controller > CODESYS Controller.
  3. Click Disable. Wait for groov Manage to indicate that it has disabled the controller.
  4. Click Enable. Wait for groov Manage to indicate that it has restarted the controller.

Resolution:

Future releases of groov EPIC firmware will display a message to remind you to restart the controller.

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 © 2024 Opto 22. All rights reserved.