KB89758
Published: November 2, 2021
Revision: 2.0

Viewing invalid float values on Generic MMP or Scratch Pad page causes incorrect behavior


Applies To:

Firmware for the following groov EPICs:

  • GRV-EPIC-PR1
  • GRV-EPIC-PR2

Firmware for the following groov RIOs:

  • GRV-R7-MM1001-10
  • GRV-R7-MM2001-10

Versions Affected:

groov EPICs: 3.2.0 to 3.2.2 (may affect earlier versions)
groov RIOs: 3.2.0 to current (may affect earlier versions)

Resolved In Version:

groov EPICs: 3.3.0


Symptoms:

When viewing float values on the Generic MMP page (from the groov Manage Home page, click I/O > I/O Tools > Generic MMP), an invalid value (for example, a NaN) causes the value field—and subsequent fields—to be blank. In the following example, 0xF0D82008 has an invalid value; the value is blank for this and all subsequent addresses:



The same issue occurs on the Scratch Pad page (from the groov Manage Home page, click I/O > I/O Tools > Scratch Pad). In the following example, index 2 has an invalid value; the value is blank for index 2 and all subsequent indexes:

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


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.