Some full-feature groov I/O modules may disrupt communication with groov I/O simple and serial modules

Applies To:

Firmware for the following affected groov I/O modules:

GRV-IDC-24
GRV-IDCI-12
GRV-IACDCTTL-24

Versions Affected:

Modules manufactured between November 10, 2024 and February 10, 2025 with serial numbers from 984512 up to and including 991333.

Resolved In Version:

1.4a

Symptoms:

If an affected groov I/O module is inserted in one of the first five slots (positions 0 through 4) of the chassis, groov simple modules in positions 0 through 7 and groov serial modules (only supported in positions 0 through 3) may encounter communication issues and be unable to connect. The module LED color may or may not indicate an issue.

Workaround:

Rearrange the modules on the chassis based on the following:

If you have groov serial modules (only supported in positions 0 through 3) and groov simple modules in positions 0 through 7, do not place an affected module in positions 0 through 4 of the chassis.
If you do not have groov serial modules but have affected groov modules in positions 0 through 4, do not place groov simple modules in positions 0 through 7 of the chassis.

After rearranging the modules, some modules may not recover until:

Power to the chassis is turned off for several seconds and then turned back on
The affected groov simple modules are removed from the chassis and then reinserted (hot-swapped)

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.