groov discrete input channel may not produce period, pulse, or frequency measurements

Applies To:

Firmware for the following groov I/O modules:

GRV-IAC-24
GRV-IACDCTTL-24
GRV-IACHV-24
GRV-IDC-24
GRV-IACI-12
GRV-IACIHV-12
GRV-IDCI-12
GRV-IDCSW-12
GRV-IDCIFQ-12

Versions Affected:

Versions lower than R1.3d for the following modules:

GRV-IAC-24
GRV-IACDCTTL-24
GRV-IACHV-24
GRV-IDC-24
GRV-IACI-12
GRV-IACIHV-12
GRV-IDCI-12
GRV-IDCSW-12

Versions lower than R1.3e for the following module:

GRV-IDCIFQ-12

Resolved In Version:

R1.3d for the following modules:

GRV-IAC-24
GRV-IACDCTTL-24
GRV-IACHV-24
GRV-IDC-24
GRV-IACI-12
GRV-IACIHV-12
GRV-IDCI-12
GRV-IDCSW-12

R1.3e for the following module:

GRV-IDCIFQ-12

Symptoms:

Note: This issue applies only to users that configure their modules through OptoMMP. It does not apply to PAC Control nor CODESYS users.

For the affected modules, if a channel is configured with the following features, you may see the listed symptom:

Pulse or period measurements (one-time)—If a pulse or period is at frequencies above 5 kHz, the channel may not measure a subsequent pulse or period.
Frequency (one-time) feature—If there is no input signal (0 Hz), the channel may not report a measurement.

In the memory map, the channel's feature type is not cleared.

Workaround:

Reconfigure the channel with the pulse (one-time), period (one-time), or frequency (one-time) feature.

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.