KB88608
Published: July 22, 2020
Revision: 2.0

Get and Restart Measurement Commands Don't Restart Measurement Correctly


Applies To:

Firmware for GRV-EPIC-PR1, along with the firmware for the following modules:

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

Versions Affected:

For GRV-EPIC-PR1: All versions prior to 2.0.2
For modules listed: All versions prior to 2.0.2

Resolved In Version:

2.0.2


Symptoms:

The following PAC Control commands are supposed to restart the measurement at the start of the next pulse or period:

  • Get & Restart Off-Pulse Measurement
  • Get & Restart On-Pulse Measurement
  • Get & Restart Period
However, with this issue, if an on-pulse, off-pulse, or period is in progress, these commands do not restart the measurement at the start of the next pulse or period; the command continues to measure the current pulse or period.
You will notice this issue when you run the commands with channels on the following modules:
  • GRV-IAC-24
  • GRV-IACDCTTL-24
  • GRV-IACHV-24
  • GRV-IACI-12
  • GRV-IACIHV-12
  • GRV-IDC-24
  • GRV-IDCI-12
  • GRV-IDCIFQ-12
  • GRV-IDCSW-12

Workaround:

Before a Get and Restart command, ensure that the current pulse or period is complete with the appropriate command:

  • Get Off Pulse Measurement Complete Status
  • Get On Pulse Measurement Complete Status
  • Get Period Measurement Complete Status

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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