KB88418
Published: August 19, 2019
Revision: 1.0

Cannot enable communication to groov I/O unit


Applies To:

Firmware for GRV-EPIC-PR1

Firmware for:

  • SNAP-PAC-S1, SNAP-PAC-S1-FM, SNAP-PAC-S1-W
  • SNAP-PAC-S2, SNAP-PAC-S2-W
  • SNAP-PAC-R1, SNAP-PAC-R1-FM, SNAP-PAC-R1-W, SNAP-PAC-R1-B
  • SNAP-PAC-R2, SNAP-PAC-R2-FM, SNAP-PAC-R2-W
  • SoftPAC

Versions Affected:

All versions prior to 1.4.0 for GRV-EPIC-PR1
Version 10.0a or newer for SNAP-PAC/SoftPAC controllers

Resolved In Version:

1.4.0 for GRV-EPIC-PR1


Symptoms:

If either of the following conditions occur after a PAC Control strategy has run, the control engine will not be able to enable communication to groov I/O Units and a -93 (I/O Unit Disabled) error will be posted to the control engine’s message queue:

  • Power is cycled on a groov I/O unit.
  • Communication to the groov I/O Unit becomes disabled due to power or error condition
Note: This issue does not occur the first time the PAC Control strategy is run after downloading the strategy to the control engine.

Workaround:

Clear control engine RAM and then download the strategy again.

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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