KB89735
Published: June 15, 2021
Revision: 2.0

Control engine resets on first attempt to communicate with an alternate host task


Applies To:

Firmware for the following groov EPIC processors:

  • GRV-EPIC-PR1
  • GRV-EPIC-PR2
Firmware for SoftPAC

Versions Affected:

For listed groov EPICs: 2.0.1 to 3.2.0
For SoftPAC: 10.3b to current

Resolved In Version:

For listed groov EPICs: 3.2.1


Symptoms:

If you do the following two steps (in the listed order), the groov EPIC control engine resets; for SoftPAC, a -16 bus error message is placed in its message queue and the alternate host task will not work:

  1. In a PAC Control strategy, use an extended bank write command, such as Move Numeric Table To I/O Unit Ex, with over 16 channels per module for a groov EPIC or a groov RIO I/O unit. The I/O unit must contain at least one configured analog output channel.
  2. Start an alternate host task; the issue occurs when host software sends a command to the alternate host task.

Resolution:

Opto 22 has resolved this issue and will include the fix in an upcoming release.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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