KB89405
Published: May 25, 2021
Revision: 2.0

Digital input channel set for continuous frequency doesn't report 0 Hz when input stops toggling


Applies To:

Firmware for GRV-R7-MM1001-10

Versions Affected:

All versions prior to 3.2.0

Resolved In Version:

3.2.0


Symptoms:

If you configure channel 0 or 1 of GRV-R7-MM1001-10 as a digital input that measures frequency, the channel does not report 0 Hz when the input stops toggling; instead, the channel holds the last measured value.

Workaround:

Read and clear—at regular time intervals—the on-latch of the digital input channel that is measuring frequency. If the latch is not set, then the frequency is 0 Hz.

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


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