KB88780
Published: May 5, 2020
Revision: 2.0

Writing NaN (Not A Number float value) to analog output is not ignored


Applies To:

Firmware for GRV-EPIC-PR1

Versions Affected:

All versions to 1.5.0

Resolved In Version:

2.0.0


Symptoms:

Writing NaN (Not A Number float value) to an analog output should be ignored. However, this issue causes the following:

  • In PAC Control, when you read the analog output, you'll see 1.#QNAN.
  • In groov Manage, you'll see "Invalid Value."
However, the analog output value is not changed, which is the correct behavior.

Workaround:

Ensure that the floating-point value is valid before writing it to an analog output.

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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